--------------------------------------------------------------------------------------------------
      name:  <unnamed>
       log:  H:\YR\labora\labora\Keh\Keksij�t\totaaliajot\total_110519_final.log
  log type:  text
 opened on:   4 Jan 2013, 08:54:02

. *cd "H:\YR\labora\labora\Keh\Keksij�t\totaaliajot\";
. *---------------------------------------------------------------------------;
. *get patent info from uinv_linked.dta for individuals;
. *---------------------------------------------------------------------------;
. *calculate patents per individual by application year;
. use uinv_linked.dta;

. drop vuosi;

. rename hakuvuosi vuosi;

. sort shtun vuosi;

. save inv_linked_app.dta, replace;
file inv_linked_app.dta saved

. clear;

. use ht8804_inv.dta;

. keep shtun vuosi;

.  destring vuosi, replace;
vuosi has all characters numeric; replaced as int

. sort shtun vuosi;

. merge shtun vuosi using inv_linked_app.dta, uniqmaster;
(note: you are using old merge syntax; see [D] merge for new syntax)
variables shtun vuosi do not uniquely identify observations in inv_linked_app.dta

. tab _merge;

     _merge |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |     47,047       85.37       85.37
          2 |      2,056        3.73       89.10
          3 |      6,009       10.90      100.00
------------+-----------------------------------
      Total |     55,112      100.00

. sort shtun vuosi;

. egen paten_app=group(spatent);
(47047 missing values generated)

. by shtun vuosi: egen pat_apps=count(paten_app);

. keep shtun vuosi pat_apps;

. duplicates drop shtun vuosi pat_apps, force;

Duplicates in terms of shtun vuosi pat_apps

(3160 observations deleted)

. sort vuosi;

. keep if vuosi>=1991 & vuosi<=1999;
(23949 observations deleted)

. save pat_app.dta, replace;
file pat_app.dta saved

. clear;

. *--------------------------------------------------------------------;
. *calculate patents per individual by grant year;
. use uinv_linked.dta;

. drop vuosi;

. rename gyear vuosi;

. gen assig_firm = 0 if asscode==1 | asscode==5;
(7342 missing values generated)

. replace assig_firm = 1 if syrtun_pat==syrtun_fleed & syrtun_pat!="";
(3010 real changes made)

. replace assig_firm = 2 if syrtun_pat!=syrtun_fleed & assig_firm==. & syrtun_pat!="" & syrtun_fle
> ed!="";
(1801 real changes made)

. replace assig_firm = 4 if syrtun_pat=="" & assig_firm!=0;
(314 real changes made)

. replace assig_firm = 5 if syrtun_fleed=="" & assig_firm!=0;
(2341 real changes made)

. replace assig_firm = 3 if syrtun_pat=="" & syrtun_fleed=="" & assig_firm!=0;
(120 real changes made)

. tab assig_firm;

 assig_firm |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        719        8.92        8.92
          1 |      3,010       37.32       46.24
          2 |      1,801       22.33       68.57
          3 |        120        1.49       70.06
          4 |        194        2.41       72.46
          5 |      2,221       27.54      100.00
------------+-----------------------------------
      Total |      8,065      100.00

. gen citlag=2002-hakuvuosi;

. rename creceive1 cits;

. replace cits=cits/0.037 if citlag==1 & cat==1;
(0 real changes made)

. replace cits=cits/0.045 if citlag==1 & cat==2;
(0 real changes made)

. replace cits=cits/0.026 if citlag==1 & cat==3;
(0 real changes made)

. replace cits=cits/0.048 if citlag==1 & cat==4;
(0 real changes made)

. replace cits=cits/0.043 if citlag==1 & cat==5;
(0 real changes made)

. replace cits=cits/0.026 if citlag==1 & cat==6;
(0 real changes made)

. replace cits=cits/0.091 if citlag==2 & cat==1;
(0 real changes made)

. replace cits=cits/0.112 if citlag==2 & cat==2;
(0 real changes made)

. replace cits=cits/0.067 if citlag==2 & cat==3;
(0 real changes made)

. replace cits=cits/0.115 if citlag==2 & cat==4;
(0 real changes made)

. replace cits=cits/0.101 if citlag==2 & cat==5;
(0 real changes made)

. replace cits=cits/0.069 if citlag==2 & cat==6;
(0 real changes made)

. replace cits=cits/0.152 if citlag==3 & cat==1;
(0 real changes made)

. replace cits=cits/0.188 if citlag==3 & cat==2;
cits was byte now float
(1 real change made)

. replace cits=cits/0.114 if citlag==3 & cat==3;
(0 real changes made)

. replace cits=cits/0.187 if citlag==3 & cat==4;
(1 real change made)

. replace cits=cits/0.164 if citlag==3 & cat==5;
(1 real change made)

. replace cits=cits/0.123 if citlag==3 & cat==6;
(0 real changes made)

. replace cits=cits/0.214 if citlag==4 & cat==1;
(39 real changes made)

. replace cits=cits/0.266 if citlag==4 & cat==2;
(13 real changes made)

. replace cits=cits/0.165 if citlag==4 & cat==3;
(21 real changes made)

. replace cits=cits/0.259 if citlag==4 & cat==4;
(7 real changes made)

. replace cits=cits/0.226 if citlag==4 & cat==5;
(29 real changes made)

. replace cits=cits/0.182 if citlag==4 & cat==6;
(12 real changes made)

. replace cits=cits/0.275 if citlag==5 & cat==1;
(144 real changes made)

. replace cits=cits/0.342 if citlag==5 & cat==2;
(212 real changes made)

. replace cits=cits/0.216 if citlag==5 & cat==3;
(50 real changes made)

. replace cits=cits/0.327 if citlag==5 & cat==4;
(54 real changes made)

. replace cits=cits/0.285 if citlag==5 & cat==5;
(116 real changes made)

. replace cits=cits/0.244 if citlag==5 & cat==6;
(47 real changes made)

. replace cits=cits/0.333 if citlag==6 & cat==1;
(136 real changes made)

. replace cits=cits/0.413 if citlag==6 & cat==2;
(417 real changes made)

. replace cits=cits/0.265 if citlag==6 & cat==3;
(77 real changes made)

. replace cits=cits/0.390 if citlag==6 & cat==4;
(79 real changes made)

. replace cits=cits/0.341 if citlag==6 & cat==5;
(106 real changes made)

. replace cits=cits/0.306 if citlag==6 & cat==6;
(68 real changes made)

. replace cits=cits/0.387 if citlag==7 & cat==1;
(185 real changes made)

. replace cits=cits/0.479 if citlag==7 & cat==2;
(202 real changes made)

. replace cits=cits/0.314 if citlag==7 & cat==3;
(94 real changes made)

. replace cits=cits/0.448 if citlag==7 & cat==4;
(97 real changes made)

. replace cits=cits/0.393 if citlag==7 & cat==5;
(110 real changes made)

. replace cits=cits/0.366 if citlag==7 & cat==6;
(90 real changes made)

. replace cits=cits/0.438 if citlag==8 & cat==1;
(250 real changes made)

. replace cits=cits/0.538 if citlag==8 & cat==2;
(113 real changes made)

. replace cits=cits/0.360 if citlag==8 & cat==3;
(109 real changes made)

. replace cits=cits/0.502 if citlag==8 & cat==4;
(98 real changes made)

. replace cits=cits/0.442 if citlag==8 & cat==5;
(114 real changes made)

. replace cits=cits/0.424 if citlag==8 & cat==6;
(68 real changes made)

. replace cits=cits/0.485 if citlag==9 & cat==1;
(157 real changes made)

. replace cits=cits/0.592 if citlag==9 & cat==2;
(110 real changes made)

. replace cits=cits/0.404 if citlag==9 & cat==3;
(73 real changes made)

. replace cits=cits/0.550 if citlag==9 & cat==4;
(74 real changes made)

. replace cits=cits/0.487 if citlag==9 & cat==5;
(98 real changes made)

. replace cits=cits/0.479 if citlag==9 & cat==6;
(50 real changes made)

. replace cits=cits/0.529 if citlag==10 & cat==1;
(165 real changes made)

. replace cits=cits/0.640 if citlag==10 & cat==2;
(81 real changes made)

. replace cits=cits/0.446 if citlag==10 & cat==3;
(49 real changes made)

. replace cits=cits/0.594 if citlag==10 & cat==4;
(92 real changes made)

. replace cits=cits/0.530 if citlag==10 & cat==5;
(89 real changes made)

. replace cits=cits/0.530 if citlag==10 & cat==6;
(60 real changes made)

. replace cits=cits/0.569 if citlag==11 & cat==1;
(161 real changes made)

. replace cits=cits/0.683 if citlag==11 & cat==2;
(44 real changes made)

. replace cits=cits/0.486 if citlag==11 & cat==3;
(67 real changes made)

. replace cits=cits/0.635 if citlag==11 & cat==4;
(90 real changes made)

. replace cits=cits/0.569 if citlag==11 & cat==5;
(109 real changes made)

. replace cits=cits/0.578 if citlag==11 & cat==6;
(101 real changes made)

. replace cits=cits/0.607 if citlag==12 & cat==1;
(161 real changes made)

. replace cits=cits/0.721 if citlag==12 & cat==2;
(44 real changes made)

. replace cits=cits/0.524 if citlag==12 & cat==3;
(65 real changes made)

. replace cits=cits/0.671 if citlag==12 & cat==4;
(68 real changes made)

. replace cits=cits/0.606 if citlag==12 & cat==5;
(169 real changes made)

. replace cits=cits/0.622 if citlag==12 & cat==6;
(97 real changes made)

. replace cits=cits/0.642 if citlag==13 & cat==1;
(158 real changes made)

. replace cits=cits/0.755 if citlag==13 & cat==2;
(19 real changes made)

. replace cits=cits/0.560 if citlag==13 & cat==3;
(38 real changes made)

. replace cits=cits/0.705 if citlag==13 & cat==4;
(63 real changes made)

. replace cits=cits/0.640 if citlag==13 & cat==5;
(122 real changes made)

. replace cits=cits/0.662 if citlag==13 & cat==6;
(84 real changes made)

. replace cits=cits/0.674 if citlag==14 & cat==1;
(191 real changes made)

. replace cits=cits/0.785 if citlag==14 & cat==2;
(11 real changes made)

. replace cits=cits/0.593 if citlag==14 & cat==3;
(45 real changes made)

. replace cits=cits/0.735 if citlag==14 & cat==4;
(57 real changes made)

. replace cits=cits/0.671 if citlag==14 & cat==5;
(94 real changes made)

. replace cits=cits/0.699 if citlag==14 & cat==6;
(72 real changes made)

. replace cits=cits/0.704 if citlag==15 & cat==1;
(0 real changes made)

. replace cits=cits/0.812 if citlag==15 & cat==2;
(0 real changes made)

. replace cits=cits/0.625 if citlag==15 & cat==3;
(0 real changes made)

. replace cits=cits/0.763 if citlag==15 & cat==4;
(0 real changes made)

. replace cits=cits/0.701 if citlag==15 & cat==5;
(0 real changes made)

. replace cits=cits/0.732 if citlag==15 & cat==6;
(0 real changes made)

. sum no_inv;

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
      no_inv |      8065    2.988593    1.993011          1         12

. sum cits;

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
        cits |      8065    9.642874    13.46806          0   137.3093

. tab no_inv;

     no_inv |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      2,047       25.38       25.38
          2 |      1,950       24.18       49.56
          3 |      1,596       19.79       69.35
          4 |      1,025       12.71       82.06
          5 |        566        7.02       89.08
          6 |        371        4.60       93.68
          7 |        215        2.67       96.34
          8 |        133        1.65       97.99
          9 |         76        0.94       98.93
         10 |         20        0.25       99.18
         11 |         33        0.41       99.59
         12 |         33        0.41      100.00
------------+-----------------------------------
      Total |      8,065      100.00

. tab cat;

        cat |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      2,263       28.06       28.06
          2 |      1,374       17.04       45.10
          3 |        935       11.59       56.69
          4 |        987       12.24       68.93
          5 |      1,543       19.13       88.06
          6 |        963       11.94      100.00
------------+-----------------------------------
      Total |      8,065      100.00

. tab assig_firm;

 assig_firm |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        719        8.92        8.92
          1 |      3,010       37.32       46.24
          2 |      1,801       22.33       68.57
          3 |        120        1.49       70.06
          4 |        194        2.41       72.46
          5 |      2,221       27.54      100.00
------------+-----------------------------------
      Total |      8,065      100.00

. tab asscode;

    asscode |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        657        8.15        8.15
          2 |         71        0.88        9.03
          3 |      7,268       90.12       99.14
          5 |         66        0.82       99.96
          6 |          3        0.04      100.00
------------+-----------------------------------
      Total |      8,065      100.00

. tab hakuvuosi;

  hakuvuosi |      Freq.     Percent        Cum.
------------+-----------------------------------
       1988 |        506        6.27        6.27
       1989 |        570        7.07       13.34
       1990 |        671        8.32       21.66
       1991 |        678        8.41       30.07
       1992 |        618        7.66       37.73
       1993 |        682        8.46       46.19
       1994 |        956       11.85       58.04
       1995 |      1,055       13.08       71.12
       1996 |      1,190       14.76       85.88
       1997 |        912       11.31       97.19
       1998 |        223        2.77       99.95
       1999 |          4        0.05      100.00
------------+-----------------------------------
      Total |      8,065      100.00

. *---------------------------------;
. *calculate share of patent and cites per individual per patent;
. gen ipshare= 1/no_inv;

. sum ipshare;

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
     ipshare |      8065    .5020232    .3118738   .0833333          1

. gen cishare= cits/no_inv;

. sum cishare;

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
     cishare |      8065    4.565868     7.47763          0   89.58838

. *---------------------------------;
. sort shtun vuosi;

. save inv_linked1.dta, replace;
file inv_linked1.dta saved

. clear;

. *---------------------------------------------------------------------------;
. *get individual information from FLEED and merge with patent info;
. *---------------------------------------------------------------------------;
. use ht8804_inv.dta;

. keep shtun vuosi sp ika kieli kans ptoim1 amas1 apvm1 tyokk ttyotu tyrtu svatva svatvp 
> syrtun  nuts2  ututku ;

.  destring vuosi, replace;
vuosi has all characters numeric; replaced as int

. sort shtun vuosi;

. merge shtun vuosi using inv_linked1.dta, uniqmaster;
(note: you are using old merge syntax; see [D] merge for new syntax)
variables shtun vuosi do not uniquely identify observations in inv_linked1.dta

. tab _merge;

     _merge |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |     47,055       85.37       85.37
          2 |      2,160        3.92       89.29
          3 |      5,905       10.71      100.00
------------+-----------------------------------
      Total |     55,120      100.00

. *---------------------------------;
. *compare matched and unmatched patents;
. gen match=0 if _merge==2;
(52960 missing values generated)

. replace match=1 if _merge==3;
(5905 real changes made)

. ttest no_inv, by(match);

Two-sample t test with equal variances
------------------------------------------------------------------------------
   Group |     Obs        Mean    Std. Err.   Std. Dev.   [95% Conf. Interval]
---------+--------------------------------------------------------------------
       0 |    2160    3.049074    .0426347     1.98148    2.965465    3.132683
       1 |    5905    2.966469    .0259867    1.996922    2.915526    3.017413
---------+--------------------------------------------------------------------
combined |    8065    2.988593    .0221926    1.993011     2.94509    3.032096
---------+--------------------------------------------------------------------
    diff |             .082605    .0501105               -.0156245    .1808345
------------------------------------------------------------------------------
    diff = mean(0) - mean(1)                                      t =   1.6485
Ho: diff = 0                                     degrees of freedom =     8063

    Ha: diff < 0                 Ha: diff != 0                 Ha: diff > 0
 Pr(T < t) = 0.9504         Pr(|T| > |t|) = 0.0993          Pr(T > t) = 0.0496

. ttest cits, by(match);

Two-sample t test with equal variances
------------------------------------------------------------------------------
   Group |     Obs        Mean    Std. Err.   Std. Dev.   [95% Conf. Interval]
---------+--------------------------------------------------------------------
       0 |    2160    9.285729    .2801662    13.02095    8.736305    9.835153
       1 |    5905    9.773515    .1773293    13.62669    9.425885    10.12115
---------+--------------------------------------------------------------------
combined |    8065    9.642874    .1499695    13.46806    9.348895    9.936853
---------+--------------------------------------------------------------------
    diff |           -.4877859    .3386426               -1.151613     .176041
------------------------------------------------------------------------------
    diff = mean(0) - mean(1)                                      t =  -1.4404
Ho: diff = 0                                     degrees of freedom =     8063

    Ha: diff < 0                 Ha: diff != 0                 Ha: diff > 0
 Pr(T < t) = 0.0749         Pr(|T| > |t|) = 0.1498          Pr(T > t) = 0.9251

. tab no_inv match, chi2 column;

+-------------------+
| Key               |
|-------------------|
|     frequency     |
| column percentage |
+-------------------+

           |         match
    no_inv |         0          1 |     Total
-----------+----------------------+----------
         1 |       513      1,534 |     2,047 
           |     23.75      25.98 |     25.38 
-----------+----------------------+----------
         2 |       500      1,450 |     1,950 
           |     23.15      24.56 |     24.18 
-----------+----------------------+----------
         3 |       462      1,134 |     1,596 
           |     21.39      19.20 |     19.79 
-----------+----------------------+----------
         4 |       275        750 |     1,025 
           |     12.73      12.70 |     12.71 
-----------+----------------------+----------
         5 |       181        385 |       566 
           |      8.38       6.52 |      7.02 
-----------+----------------------+----------
         6 |        91        280 |       371 
           |      4.21       4.74 |      4.60 
-----------+----------------------+----------
         7 |        66        149 |       215 
           |      3.06       2.52 |      2.67 
-----------+----------------------+----------
         8 |        25        108 |       133 
           |      1.16       1.83 |      1.65 
-----------+----------------------+----------
         9 |        24         52 |        76 
           |      1.11       0.88 |      0.94 
-----------+----------------------+----------
        10 |         5         15 |        20 
           |      0.23       0.25 |      0.25 
-----------+----------------------+----------
        11 |         8         25 |        33 
           |      0.37       0.42 |      0.41 
-----------+----------------------+----------
        12 |        10         23 |        33 
           |      0.46       0.39 |      0.41 
-----------+----------------------+----------
     Total |     2,160      5,905 |     8,065 
           |    100.00     100.00 |    100.00 

         Pearson chi2(11) =  24.2066   Pr = 0.012

. tab cat match, chi2 column;

+-------------------+
| Key               |
|-------------------|
|     frequency     |
| column percentage |
+-------------------+

           |         match
       cat |         0          1 |     Total
-----------+----------------------+----------
         1 |       645      1,618 |     2,263 
           |     29.86      27.40 |     28.06 
-----------+----------------------+----------
         2 |       335      1,039 |     1,374 
           |     15.51      17.60 |     17.04 
-----------+----------------------+----------
         3 |       268        667 |       935 
           |     12.41      11.30 |     11.59 
-----------+----------------------+----------
         4 |       270        717 |       987 
           |     12.50      12.14 |     12.24 
-----------+----------------------+----------
         5 |       370      1,173 |     1,543 
           |     17.13      19.86 |     19.13 
-----------+----------------------+----------
         6 |       272        691 |       963 
           |     12.59      11.70 |     11.94 
-----------+----------------------+----------
     Total |     2,160      5,905 |     8,065 
           |    100.00     100.00 |    100.00 

          Pearson chi2(5) =  16.5373   Pr = 0.005

. tab assig_firm match, chi2 column;

+-------------------+
| Key               |
|-------------------|
|     frequency     |
| column percentage |
+-------------------+

           |         match
assig_firm |         0          1 |     Total
-----------+----------------------+----------
         0 |       213        506 |       719 
           |      9.86       8.57 |      8.92 
-----------+----------------------+----------
         1 |        43      2,967 |     3,010 
           |      1.99      50.25 |     37.32 
-----------+----------------------+----------
         2 |        23      1,778 |     1,801 
           |      1.06      30.11 |     22.33 
-----------+----------------------+----------
         3 |        81         39 |       120 
           |      3.75       0.66 |      1.49 
-----------+----------------------+----------
         4 |         6        188 |       194 
           |      0.28       3.18 |      2.41 
-----------+----------------------+----------
         5 |     1,794        427 |     2,221 
           |     83.06       7.23 |     27.54 
-----------+----------------------+----------
     Total |     2,160      5,905 |     8,065 
           |    100.00     100.00 |    100.00 

          Pearson chi2(5) =  5.0e+03   Pr = 0.000

. tab asscode match, chi2 column;

+-------------------+
| Key               |
|-------------------|
|     frequency     |
| column percentage |
+-------------------+

           |         match
   asscode |         0          1 |     Total
-----------+----------------------+----------
         1 |       191        466 |       657 
           |      8.84       7.89 |      8.15 
-----------+----------------------+----------
         2 |        33         38 |        71 
           |      1.53       0.64 |      0.88 
-----------+----------------------+----------
         3 |     1,913      5,355 |     7,268 
           |     88.56      90.69 |     90.12 
-----------+----------------------+----------
         5 |        22         44 |        66 
           |      1.02       0.75 |      0.82 
-----------+----------------------+----------
         6 |         1          2 |         3 
           |      0.05       0.03 |      0.04 
-----------+----------------------+----------
     Total |     2,160      5,905 |     8,065 
           |    100.00     100.00 |    100.00 

          Pearson chi2(4) =  18.1018   Pr = 0.001

. tab hakuvuosi match, chi2 column;

+-------------------+
| Key               |
|-------------------|
|     frequency     |
| column percentage |
+-------------------+

           |         match
 hakuvuosi |         0          1 |     Total
-----------+----------------------+----------
      1988 |       104        402 |       506 
           |      4.81       6.81 |      6.27 
-----------+----------------------+----------
      1989 |       201        369 |       570 
           |      9.31       6.25 |      7.07 
-----------+----------------------+----------
      1990 |       183        488 |       671 
           |      8.47       8.26 |      8.32 
-----------+----------------------+----------
      1991 |       199        479 |       678 
           |      9.21       8.11 |      8.41 
-----------+----------------------+----------
      1992 |       198        420 |       618 
           |      9.17       7.11 |      7.66 
-----------+----------------------+----------
      1993 |       192        490 |       682 
           |      8.89       8.30 |      8.46 
-----------+----------------------+----------
      1994 |       287        669 |       956 
           |     13.29      11.33 |     11.85 
-----------+----------------------+----------
      1995 |       271        784 |     1,055 
           |     12.55      13.28 |     13.08 
-----------+----------------------+----------
      1996 |       299        891 |     1,190 
           |     13.84      15.09 |     14.76 
-----------+----------------------+----------
      1997 |       171        741 |       912 
           |      7.92      12.55 |     11.31 
-----------+----------------------+----------
      1998 |        55        168 |       223 
           |      2.55       2.85 |      2.77 
-----------+----------------------+----------
      1999 |         0          4 |         4 
           |      0.00       0.07 |      0.05 
-----------+----------------------+----------
     Total |     2,160      5,905 |     8,065 
           |    100.00     100.00 |    100.00 

         Pearson chi2(11) =  82.0465   Pr = 0.000

. drop if shtun=="";
(1906 observations deleted)

. drop _merge;

. *--------------------------------------------------------------------;
. *calculate patents granted and citations received per person per year;
. *--------------------------------------------------------------------;
. sort shtun vuosi;

. egen paten=group(spatent);
(47055 missing values generated)

. by shtun vuosi: egen pats=count(paten);

. by shtun vuosi: egen pats_ind=count(paten) if assig_firm==0;
(52673 missing values generated)

. replace pats_ind=0 if pats_ind==.;
(52673 real changes made)

. by shtun vuosi: egen pats_indi=max(pats_ind);

. by shtun vuosi: egen coinv=total(no_inv);

.  *no. of inventors;
. by shtun vuosi: egen pats_share=total(ipshare);

. sum pats_share;

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
  pats_share |     53214     .094067    .4018156          0         13

. by shtun vuosi: egen cits_share=total(cishare);

. sum cits_share;

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
  cits_share |     53214    .8931861     5.09577          0   147.6998

. rename cits creceive1;

. by shtun vuosi: egen cits=total(creceive1);

.  by shtun vuosi: egen cits_ind=total(creceive1) if assig_firm==0;
(52673 missing values generated)

. replace cits_ind=0 if cits_ind==.;
(52673 real changes made)

. by shtun vuosi: egen cits_indi=max(cits_ind);

. *-----------------------------------------------;
. duplicates report shtun vuosi pats;

Duplicates in terms of shtun vuosi pats

--------------------------------------
   copies | observations       surplus
----------+---------------------------
        1 |        51230             0
        2 |         1158           579
        3 |          459           306
        4 |          172           129
        5 |           70            56
        6 |           48            40
        7 |           14            12
        8 |           32            28
        9 |           18            16
       13 |           13            12
--------------------------------------

. duplicates drop shtun vuosi pats, force;

Duplicates in terms of shtun vuosi pats

(1178 observations deleted)

. sort vuosi;

. keep if vuosi>=1991 & vuosi<=1999;
(23934 observations deleted)

. save inv_linked_s2.dta, replace;
file inv_linked_s2.dta saved

. clear;

. use inv_linked_s2.dta;

. sort shtun vuosi;

. merge shtun vuosi using pat_app.dta, sort;
(note: you are using old merge syntax; see [D] merge for new syntax)

. drop _merge;

. save inv_linked_s2.dta, replace;
file inv_linked_s2.dta saved

. clear;

. *--------------------------------------------------------------------------;
. *calculate average wages per firm using sample from FLEED;
. use "H:\YR\labora\labora\Keh\Keksij�t\kontrollit\kontr_otos4.dta";

. rename ttyotu wage;

. replace wage=wage/0.895316804407714 if vuosi==1991;
(91886 real changes made)

. replace wage=wage/0.918044077134986 if vuosi==1992;
(91271 real changes made)

. replace wage=wage/0.93732782369146 if vuosi==1993;
(91493 real changes made)

. replace wage=wage/0.947658402203857 if vuosi==1994;
(93393 real changes made)

. replace wage=wage/0.957300275482094 if vuosi==1995;
(95550 real changes made)

. replace wage=wage/0.962809917355372 if vuosi==1996;
(97361 real changes made)

. replace wage=wage/0.974517906336088 if vuosi==1997;
(100000 real changes made)

. replace wage=wage/0.988292011019284 if vuosi==1998;
(99151 real changes made)

. collapse wage, by(syrtun vuosi);

. replace wage=log(wage);
(90606 real changes made, 1495 to missing)

. rename wage firmwage;

. save firm_wages.dta, replace;
file firm_wages.dta saved

. clear;

. *--------------------------------------------------------------------------;
. *---------------------------------------------------------------------------;
. *use patent data to calculate patents & cites per assignee firm;
. *---------------------------------------------------------------------------;
. use uinv_linked.dta;

. drop vuosi;

. rename gyear vuosi;

. sort syrtun_pat vuosi spatent;

. duplicates drop syrtun_pat vuosi spatent, force;

Duplicates in terms of syrtun_pat vuosi spatent

(3936 observations deleted)

. sort syrtun_pat vuosi spatent;

. egen fpaten=group(spatent);

. bysort syrtun_pat vuosi: egen firm_patcount = count(fpaten);

. rename creceive1 cits;

. *adjust cites for truncation using Hall et al. formula;
. gen citlag=2002-hakuvuosi;

. replace cits=cits/0.037 if citlag==1 & cat==1;
(0 real changes made)

. replace cits=cits/0.045 if citlag==1 & cat==2;
(0 real changes made)

. replace cits=cits/0.026 if citlag==1 & cat==3;
(0 real changes made)

. replace cits=cits/0.048 if citlag==1 & cat==4;
(0 real changes made)

. replace cits=cits/0.043 if citlag==1 & cat==5;
(0 real changes made)

. replace cits=cits/0.026 if citlag==1 & cat==6;
(0 real changes made)

. replace cits=cits/0.091 if citlag==2 & cat==1;
(0 real changes made)

. replace cits=cits/0.112 if citlag==2 & cat==2;
(0 real changes made)

. replace cits=cits/0.067 if citlag==2 & cat==3;
(0 real changes made)

. replace cits=cits/0.115 if citlag==2 & cat==4;
(0 real changes made)

. replace cits=cits/0.101 if citlag==2 & cat==5;
(0 real changes made)

. replace cits=cits/0.069 if citlag==2 & cat==6;
(0 real changes made)

. replace cits=cits/0.152 if citlag==3 & cat==1;
(0 real changes made)

. replace cits=cits/0.188 if citlag==3 & cat==2;
cits was byte now float
(1 real change made)

. replace cits=cits/0.114 if citlag==3 & cat==3;
(0 real changes made)

. replace cits=cits/0.187 if citlag==3 & cat==4;
(1 real change made)

. replace cits=cits/0.164 if citlag==3 & cat==5;
(1 real change made)

. replace cits=cits/0.123 if citlag==3 & cat==6;
(0 real changes made)

. replace cits=cits/0.214 if citlag==4 & cat==1;
(12 real changes made)

. replace cits=cits/0.266 if citlag==4 & cat==2;
(7 real changes made)

. replace cits=cits/0.165 if citlag==4 & cat==3;
(8 real changes made)

. replace cits=cits/0.259 if citlag==4 & cat==4;
(6 real changes made)

. replace cits=cits/0.226 if citlag==4 & cat==5;
(16 real changes made)

. replace cits=cits/0.182 if citlag==4 & cat==6;
(6 real changes made)

. replace cits=cits/0.275 if citlag==5 & cat==1;
(64 real changes made)

. replace cits=cits/0.342 if citlag==5 & cat==2;
(105 real changes made)

. replace cits=cits/0.216 if citlag==5 & cat==3;
(22 real changes made)

. replace cits=cits/0.327 if citlag==5 & cat==4;
(33 real changes made)

. replace cits=cits/0.285 if citlag==5 & cat==5;
(53 real changes made)

. replace cits=cits/0.244 if citlag==5 & cat==6;
(25 real changes made)

. replace cits=cits/0.333 if citlag==6 & cat==1;
(65 real changes made)

. replace cits=cits/0.413 if citlag==6 & cat==2;
(207 real changes made)

. replace cits=cits/0.265 if citlag==6 & cat==3;
(25 real changes made)

. replace cits=cits/0.390 if citlag==6 & cat==4;
(52 real changes made)

. replace cits=cits/0.341 if citlag==6 & cat==5;
(60 real changes made)

. replace cits=cits/0.306 if citlag==6 & cat==6;
(47 real changes made)

. replace cits=cits/0.387 if citlag==7 & cat==1;
(85 real changes made)

. replace cits=cits/0.479 if citlag==7 & cat==2;
(103 real changes made)

. replace cits=cits/0.314 if citlag==7 & cat==3;
(35 real changes made)

. replace cits=cits/0.448 if citlag==7 & cat==4;
(51 real changes made)

. replace cits=cits/0.393 if citlag==7 & cat==5;
(65 real changes made)

. replace cits=cits/0.366 if citlag==7 & cat==6;
(53 real changes made)

. replace cits=cits/0.438 if citlag==8 & cat==1;
(93 real changes made)

. replace cits=cits/0.538 if citlag==8 & cat==2;
(70 real changes made)

. replace cits=cits/0.360 if citlag==8 & cat==3;
(35 real changes made)

. replace cits=cits/0.502 if citlag==8 & cat==4;
(50 real changes made)

. replace cits=cits/0.442 if citlag==8 & cat==5;
(63 real changes made)

. replace cits=cits/0.424 if citlag==8 & cat==6;
(45 real changes made)

. replace cits=cits/0.485 if citlag==9 & cat==1;
(68 real changes made)

. replace cits=cits/0.592 if citlag==9 & cat==2;
(70 real changes made)

. replace cits=cits/0.404 if citlag==9 & cat==3;
(31 real changes made)

. replace cits=cits/0.550 if citlag==9 & cat==4;
(43 real changes made)

. replace cits=cits/0.487 if citlag==9 & cat==5;
(59 real changes made)

. replace cits=cits/0.479 if citlag==9 & cat==6;
(33 real changes made)

. replace cits=cits/0.529 if citlag==10 & cat==1;
(64 real changes made)

. replace cits=cits/0.640 if citlag==10 & cat==2;
(49 real changes made)

. replace cits=cits/0.446 if citlag==10 & cat==3;
(14 real changes made)

. replace cits=cits/0.594 if citlag==10 & cat==4;
(57 real changes made)

. replace cits=cits/0.530 if citlag==10 & cat==5;
(55 real changes made)

. replace cits=cits/0.530 if citlag==10 & cat==6;
(43 real changes made)

. replace cits=cits/0.569 if citlag==11 & cat==1;
(77 real changes made)

. replace cits=cits/0.683 if citlag==11 & cat==2;
(28 real changes made)

. replace cits=cits/0.486 if citlag==11 & cat==3;
(23 real changes made)

. replace cits=cits/0.635 if citlag==11 & cat==4;
(51 real changes made)

. replace cits=cits/0.569 if citlag==11 & cat==5;
(62 real changes made)

. replace cits=cits/0.578 if citlag==11 & cat==6;
(55 real changes made)

. replace cits=cits/0.607 if citlag==12 & cat==1;
(79 real changes made)

. replace cits=cits/0.721 if citlag==12 & cat==2;
(21 real changes made)

. replace cits=cits/0.524 if citlag==12 & cat==3;
(19 real changes made)

. replace cits=cits/0.671 if citlag==12 & cat==4;
(41 real changes made)

. replace cits=cits/0.606 if citlag==12 & cat==5;
(95 real changes made)

. replace cits=cits/0.622 if citlag==12 & cat==6;
(63 real changes made)

. replace cits=cits/0.642 if citlag==13 & cat==1;
(84 real changes made)

. replace cits=cits/0.755 if citlag==13 & cat==2;
(15 real changes made)

. replace cits=cits/0.560 if citlag==13 & cat==3;
(21 real changes made)

. replace cits=cits/0.705 if citlag==13 & cat==4;
(39 real changes made)

. replace cits=cits/0.640 if citlag==13 & cat==5;
(67 real changes made)

. replace cits=cits/0.662 if citlag==13 & cat==6;
(46 real changes made)

. replace cits=cits/0.674 if citlag==14 & cat==1;
(89 real changes made)

. replace cits=cits/0.785 if citlag==14 & cat==2;
(4 real changes made)

. replace cits=cits/0.593 if citlag==14 & cat==3;
(15 real changes made)

. replace cits=cits/0.735 if citlag==14 & cat==4;
(31 real changes made)

. replace cits=cits/0.671 if citlag==14 & cat==5;
(63 real changes made)

. replace cits=cits/0.699 if citlag==14 & cat==6;
(39 real changes made)

. replace cits=cits/0.704 if citlag==15 & cat==1;
(0 real changes made)

. replace cits=cits/0.812 if citlag==15 & cat==2;
(0 real changes made)

. replace cits=cits/0.625 if citlag==15 & cat==3;
(0 real changes made)

. replace cits=cits/0.763 if citlag==15 & cat==4;
(0 real changes made)

. replace cits=cits/0.701 if citlag==15 & cat==5;
(0 real changes made)

. replace cits=cits/0.732 if citlag==15 & cat==6;
(0 real changes made)

. bysort syrtun_pat vuosi: egen firm_citcount = total(cits);

. rename syrtun_pat syrtun;

. keep syrtun vuosi firm_patcount firm_citcount;

. sort syrtun vuosi;

. collapse firm_patcount firm_citcount, by(syrtun vuosi);

. drop if syrtun=="";
(11 observations deleted)

. *tab firm_patcount;
. sort syrtun vuosi;

. *make into a panel;
. egen fid=group(syrtun);

. sort fid;

. by fid: egen totpcount=total(firm_patcount);

. sort fid vuosi;

. tsset fid vuosi;
       panel variable:  fid (unbalanced)
        time variable:  vuosi, 1988 to 1999, but with gaps
                delta:  1 unit

. xtdes;

     fid:  1, 2, ..., 537                                    n =        537
   vuosi:  1988, 1989, ..., 1999                             T =         12
           Delta(vuosi) = 1 unit
           Span(vuosi)  = 12 periods
           (fid*vuosi uniquely identifies each observation)

Distribution of T_i:   min      5%     25%       50%       75%     95%     max
                         1       1       1         1         2       7      11

     Freq.  Percent    Cum. |  Pattern
 ---------------------------+--------------
       56     10.43   10.43 |  ...........1
       53      9.87   20.30 |  ..........1.
       38      7.08   27.37 |  ........1...
       35      6.52   33.89 |  .........1..
       32      5.96   39.85 |  ...1........
       29      5.40   45.25 |  .......1....
       25      4.66   49.91 |  ....1.......
       25      4.66   54.56 |  ..1.........
       21      3.91   58.47 |  ..........11
      223     41.53  100.00 | (other patterns)
 ---------------------------+--------------
      537    100.00         |  XXXXXXXXXXXX

. gen lagfats=l.firm_patcount;
(672 missing values generated)

. gen lagfat2=l2.firm_patcount;
(795 missing values generated)

. gen lagfat3=l3.firm_patcount;
(870 missing values generated)

. gen lagfat4=l4.firm_patcount;
(921 missing values generated)

. gen lagfat5=l5.firm_patcount;
(962 missing values generated)

. gen lagfat6=l6.firm_patcount;
(1003 missing values generated)

. gen lagfat7=l7.firm_patcount;
(1040 missing values generated)

. gen lagfat8=l8.firm_patcount;
(1075 missing values generated)

. replace lagfats=0 if lagfats==.;
(672 real changes made)

. replace lagfat2=0 if lagfat2==.;
(795 real changes made)

. replace lagfat3=0 if lagfat3==.;
(870 real changes made)

. replace lagfat4=0 if lagfat4==.;
(921 real changes made)

. replace lagfat5=0 if lagfat5==.;
(962 real changes made)

. replace lagfat6=0 if lagfat6==.;
(1003 real changes made)

. replace lagfat7=0 if lagfat7==.;
(1040 real changes made)

. replace lagfat8=0 if lagfat8==.;
(1075 real changes made)

. gen lagfits=l.firm_citcount;
(672 missing values generated)

. gen lagfit2=l2.firm_citcount;
(795 missing values generated)

. gen lagfit3=l3.firm_citcount;
(870 missing values generated)

. gen lagfit4=l4.firm_citcount;
(921 missing values generated)

. gen lagfit5=l5.firm_citcount;
(962 missing values generated)

. gen lagfit6=l6.firm_citcount;
(1003 missing values generated)

. gen lagfit7=l7.firm_citcount;
(1040 missing values generated)

. gen lagfit8=l8.firm_citcount;
(1075 missing values generated)

. replace lagfits=0 if lagfits==.;
(672 real changes made)

. replace lagfit2=0 if lagfit2==.;
(795 real changes made)

. replace lagfit3=0 if lagfit3==.;
(870 real changes made)

. replace lagfit4=0 if lagfit4==.;
(921 real changes made)

. replace lagfit5=0 if lagfit5==.;
(962 real changes made)

. replace lagfit6=0 if lagfit6==.;
(1003 real changes made)

. replace lagfit7=0 if lagfit7==.;
(1040 real changes made)

. replace lagfit8=0 if lagfit8==.;
(1075 real changes made)

. tsset, clear;

. keep syrtun vuosi firm_patcount lagfats lagfat2 lagfat3 lagfat4 lagfat5 lagfat6 lagfat7 lagfat8
> firm_citcount lagfits lagfit2 lagfit3 lagfit4 lagfit5 lagfit6 lagfit7 lagfit8;

. sort syrtun vuosi;

. save firm_pats.dta, replace;
file firm_pats.dta saved

.  clear;

. *--------------------------------------------------------------------;
. *merge with financial statements info;
. *--------------------------------------------------------------------;
. use tp8804.dta;

. destring vuosi, replace;
vuosi has all characters numeric; replaced as int

. keep if vuosi>=1991 & vuosi<=1999;
(1134668 observations deleted)

. keep syrtun vuosi tphenk tplv tol95;

. duplicates report syrtun vuosi;

Duplicates in terms of syrtun vuosi

--------------------------------------
   copies | observations       surplus
----------+---------------------------
        1 |      1213296             0
--------------------------------------

. sort syrtun vuosi;

. save tp8804_1.dta, replace;
file tp8804_1.dta saved

. clear;

. use inv_linked_s2.dta;

. sort syrtun vuosi;

. merge syrtun vuosi using tp8804_1.dta, uniqusing;
(note: you are using old merge syntax; see [D] merge for new syntax)
variables syrtun vuosi do not uniquely identify observations in the master data

. tab _merge;

     _merge |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |     10,397        0.84        0.84
          2 |  1,209,071       97.72       98.56
          3 |     17,814        1.44      100.00
------------+-----------------------------------
      Total |  1,237,282      100.00

. drop if _merge==2;
(1209071 observations deleted)

. drop _merge;

. save inv_linked_s2.dta, replace;
file inv_linked_s2.dta saved

. clear;

. *--------------------------------------------------------------------;
. *add rd variables and firm patenting variables;
. *--------------------------------------------------------------------;
. use rd8505.dta;

. destring vuosi, replace;
vuosi has all characters numeric; replaced as int

. keep if vuosi>=1991 & vuosi<=1999;
(26225 observations deleted)

. keep syrtun vuosi ysyht;

. sort syrtun vuosi;

. save rd9199a.dta, replace;
file rd9199a.dta saved

. clear;

. use inv_linked_s2.dta;

. sort syrtun vuosi;

. merge syrtun vuosi using rd9199a.dta, uniqusing;
(note: you are using old merge syntax; see [D] merge for new syntax)
variables syrtun vuosi do not uniquely identify observations in the master data

. tab _merge;

     _merge |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |     13,877       28.74       28.74
          2 |     20,077       41.58       70.32
          3 |     14,334       29.68      100.00
------------+-----------------------------------
      Total |     48,288      100.00

. drop if _merge==2;
(20077 observations deleted)

. drop _merge;

. save inv_linked_s2.dta, replace;
file inv_linked_s2.dta saved

. clear;

. use inv_linked_s2.dta;

. sort syrtun vuosi;

. merge syrtun vuosi using firm_pats.dta, sort uniqusing;
(note: you are using old merge syntax; see [D] merge for new syntax)
variables syrtun vuosi do not uniquely identify observations in the master data

. tab _merge;

     _merge |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |     17,867       62.09       62.09
          2 |        563        1.96       64.05
          3 |     10,344       35.95      100.00
------------+-----------------------------------
      Total |     28,774      100.00

. drop if _merge==2;
(563 observations deleted)

. drop _merge;

. replace firm_patcount=0 if firm_patcount==.;
(17867 real changes made)

. replace lagfats=0 if lagfats==.;
(17867 real changes made)

. replace lagfat2=0 if lagfat2==.;
(17867 real changes made)

. replace lagfat3=0 if lagfat3==.;
(17867 real changes made)

. replace lagfat4=0 if lagfat4==.;
(17867 real changes made)

. replace lagfat5=0 if lagfat5==.;
(17867 real changes made)

. replace lagfat6=0 if lagfat6==.;
(17867 real changes made)

. replace firm_citcount=0 if firm_citcount==.;
(17867 real changes made)

. replace lagfits=0 if lagfits==.;
(17867 real changes made)

. replace lagfit2=0 if lagfit2==.;
(17867 real changes made)

. replace lagfit3=0 if lagfit3==.;
(17867 real changes made)

. replace lagfit4=0 if lagfit4==.;
(17867 real changes made)

. replace lagfit5=0 if lagfit5==.;
(17867 real changes made)

. replace lagfit6=0 if lagfit6==.;
(17867 real changes made)

. tab firm_patcount;

     (mean) |
firm_patcou |
         nt |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |     17,867       63.33       63.33
          1 |      1,976        7.00       70.34
          2 |        949        3.36       73.70
          3 |        633        2.24       75.95
          4 |        426        1.51       77.46
          5 |        389        1.38       78.83
          6 |        319        1.13       79.97
          7 |        243        0.86       80.83
          8 |        219        0.78       81.60
          9 |        214        0.76       82.36
         10 |        479        1.70       84.06
         11 |        117        0.41       84.47
         12 |         30        0.11       84.58
         13 |        254        0.90       85.48
         14 |        185        0.66       86.14
         15 |         30        0.11       86.24
         16 |         29        0.10       86.35
         17 |        182        0.65       86.99
         18 |        182        0.65       87.64
         19 |         61        0.22       87.85
         20 |        127        0.45       88.30
         22 |         75        0.27       88.57
         24 |        188        0.67       89.23
         25 |        134        0.47       89.71
         26 |        260        0.92       90.63
         27 |        156        0.55       91.18
         29 |        177        0.63       91.81
         31 |        170        0.60       92.41
         32 |         73        0.26       92.67
         36 |        220        0.78       93.45
         37 |        191        0.68       94.13
         40 |        474        1.68       95.81
         44 |        141        0.50       96.31
         53 |        213        0.76       97.06
         57 |          2        0.01       97.07
         58 |        201        0.71       97.78
         63 |        172        0.61       98.39
         85 |        144        0.51       98.90
         88 |        169        0.60       99.50
         90 |        140        0.50      100.00
------------+-----------------------------------
      Total |     28,211      100.00

. *merge firm wages;
. sort syrtun vuosi;

. merge syrtun vuosi using firm_wages.dta, sort uniqusing;
(note: you are using old merge syntax; see [D] merge for new syntax)
variables syrtun vuosi do not uniquely identify observations in the master data

. tab _merge;

     _merge |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      3,679        3.20        3.20
          2 |     86,644       75.44       78.64
          3 |     24,532       21.36      100.00
------------+-----------------------------------
      Total |    114,855      100.00

. drop if _merge==2;
(86644 observations deleted)

. drop _merge;

. save inv_linked_s2.dta, replace;
file inv_linked_s2.dta saved

. clear;

. *---------------------------------------------------;
. *make into a panel;
. *---------------------------------------------------;
. use inv_linked_s2.dta;

. sort shtun vuosi;

. duplicates report shtun vuosi;

Duplicates in terms of shtun vuosi

--------------------------------------
   copies | observations       surplus
----------+---------------------------
        1 |        28211             0
--------------------------------------

. egen id=group(shtun);
(8 missing values generated)

. tsset id vuosi;
       panel variable:  id (unbalanced)
        time variable:  vuosi, 1991 to 1999, but with gaps
                delta:  1 unit

. xtdes;

      id:  1, 2, ..., 3252                                   n =       3252
   vuosi:  1991, 1992, ..., 1999                             T =          9
           Delta(vuosi) = 1 unit
           Span(vuosi)  = 9 periods
           (id*vuosi uniquely identifies each observation)

Distribution of T_i:   min      5%     25%       50%       75%     95%     max
                         1       7       9         9         9       9       9

     Freq.  Percent    Cum. |  Pattern
 ---------------------------+-----------
     2963     91.11   91.11 |  111111111
       44      1.35   92.47 |  11111111.
       22      0.68   93.14 |  1111111..
       19      0.58   93.73 |  .....1.1.
       19      0.58   94.31 |  111111...
       10      0.31   94.62 |  .....1..1
       10      0.31   94.93 |  .11111111
        9      0.28   95.20 |  111111.1.
        8      0.25   95.45 |  .....1111
      148      4.55  100.00 | (other patterns)
 ---------------------------+-----------
     3252    100.00         |  XXXXXXXXX

. sort syrtun;

. egen firm_id=group(syrtun);
(5369 missing values generated)

. xtdes;

      id:  1, 2, ..., 3252                                   n =       3252
   vuosi:  1991, 1992, ..., 1999                             T =          9
           Delta(vuosi) = 1 unit
           Span(vuosi)  = 9 periods
           (id*vuosi uniquely identifies each observation)

Distribution of T_i:   min      5%     25%       50%       75%     95%     max
                         1       7       9         9         9       9       9

     Freq.  Percent    Cum. |  Pattern
 ---------------------------+-----------
     2963     91.11   91.11 |  111111111
       44      1.35   92.47 |  11111111.
       22      0.68   93.14 |  1111111..
       19      0.58   93.73 |  .....1.1.
       19      0.58   94.31 |  111111...
       10      0.31   94.62 |  .....1..1
       10      0.31   94.93 |  .11111111
        9      0.28   95.20 |  111111.1.
        8      0.25   95.45 |  .....1111
      148      4.55  100.00 | (other patterns)
 ---------------------------+-----------
     3252    100.00         |  XXXXXXXXX

. *--------------------------------------------------------------------;
. *PERSON-LEVEL CONTROLS;
. *--------------------------------------------------------------------;
. destring sp, replace;
sp has all characters numeric; replaced as byte
(360 missing values generated)

. destring amas1, replace;
amas1 has all characters numeric; replaced as byte
(4024 missing values generated)

. destring ptoim1, replace;
ptoim1 has all characters numeric; replaced as byte
(327 missing values generated)

. destring tyokk, replace;
tyokk has all characters numeric; replaced as byte
(327 missing values generated)

. destring ika, replace;
ika has all characters numeric; replaced as byte
(327 missing values generated)

. drop if amas1==.;
(4024 observations deleted)

. *GENDER;
. gen female=1 if sp==2;
(22200 missing values generated)

. replace female=0 if sp==1;
(22182 real changes made)

. *WAGES;
. gen wage=ttyotu;

. *deflate wages to 1999 money;
. replace wage=wage/0.895316804407714 if vuosi==1991;
(2647 real changes made)

. replace wage=wage/0.918044077134986 if vuosi==1992;
(2639 real changes made)

. replace wage=wage/0.93732782369146 if vuosi==1993;
(2630 real changes made)

. replace wage=wage/0.947658402203857 if vuosi==1994;
(2640 real changes made)

. replace wage=wage/0.957300275482094 if vuosi==1995;
(2621 real changes made)

. replace wage=wage/0.962809917355372 if vuosi==1996;
(2630 real changes made)

. replace wage=wage/0.974517906336088 if vuosi==1997;
(2627 real changes made)

. replace wage=wage/0.988292011019284 if vuosi==1998;
(2601 real changes made)

. gen logwage = log(wage);
(628 missing values generated)

. gen wage3=svatva;

. replace wage3=wage3/0.895316804407714 if vuosi==1991;
(2731 real changes made)

. replace wage3=wage3/0.918044077134986 if vuosi==1992;
(2722 real changes made)

. replace wage3=wage3/0.93732782369146 if vuosi==1993;
(2689 real changes made)

. replace wage3=wage3/0.947658402203857 if vuosi==1994;
(2697 real changes made)

. replace wage3=wage3/0.957300275482094 if vuosi==1995;
(2671 real changes made)

. replace wage3=wage3/0.962809917355372 if vuosi==1996;
(2675 real changes made)

. replace wage3=wage3/0.974517906336088 if vuosi==1997;
(2669 real changes made)

. replace wage3=wage3/0.988292011019284 if vuosi==1998;
(2626 real changes made)

. gen logwage3=log(wage3);
(143 missing values generated)

. gen wage4=svatvp;
(5517 missing values generated)

. replace wage4=wage4/0.895316804407714 if vuosi==1991;
(0 real changes made)

. replace wage4=wage4/0.918044077134986 if vuosi==1992;
(0 real changes made)

. replace wage4=wage4/0.93732782369146 if vuosi==1993;
(1039 real changes made)

. replace wage4=wage4/0.947658402203857 if vuosi==1994;
(1117 real changes made)

. replace wage4=wage4/0.957300275482094 if vuosi==1995;
(1072 real changes made)

. replace wage4=wage4/0.962809917355372 if vuosi==1996;
(1158 real changes made)

. replace wage4=wage4/0.974517906336088 if vuosi==1997;
(1262 real changes made)

. replace wage4=wage4/0.988292011019284 if vuosi==1998;
(1328 real changes made)

. gen logwage4=log(wage4);
(15832 missing values generated)

. gen wage5=wage4 + wage3;
(5517 missing values generated)

. gen logwage5=log(wage5);
(5541 missing values generated)

. *EDUCATION;
. gen educ=substr(ututku,1,2);

. destring educ, replace;
educ has all characters numeric; replaced as byte

. gen edu_level=substr(ututku,1,1);

. destring edu_level, replace;
edu_level has all characters numeric; replaced as byte

. gen edu_field=substr(ututku,2,1);

. destring edu_field, replace;
edu_field has all characters numeric; replaced as byte

. *MONTHS EMPLOYED;
. rename tyokk months;

. *TENURE;
. *apvm is the beginning date for the job;
. *first two digits indicate the year;
. gen startyr=substr(apvm1,1,2);
(518 missing values generated)

. destring startyr, replace;
startyr has all characters numeric; replaced as byte
(518 missing values generated)

. gen tenure=vuosi-1900-startyr;
(518 missing values generated)

. *AGE;
. gen age=ika;

. gen age2 = age^2;

. gen tenure2 = tenure^2;
(518 missing values generated)

. *---------------------------------------------------------------------;
. *NUMBER OF PATENTS PER PERSON OVER ALL THE YEARS (91-99);
. *---------------------------------------------------------------------;
. sort id;

. by id: egen totpat=total(pats);

. drop if totpat==0;
(2434 observations deleted)

.  *--------------------------------------------------------------------;
. *FIRM-LEVEL CONTROLS;
. *--------------------------------------------------------------------;
. *note: firm variables not available for all the obs;
. gen sector=substr(tol95,1,2);
(5461 missing values generated)

. gen emp=tphenk/100;
(5451 missing values generated)

. sort vuosi;

. by vuosi: sum emp;

--------------------------------------------------------------------------------------------------
-> vuosi = 1991

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
         emp |      1596    26.23159    22.22176        .05     114.29

--------------------------------------------------------------------------------------------------
-> vuosi = 1992

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
         emp |      1604    23.45893    20.75979        .06      96.84

--------------------------------------------------------------------------------------------------
-> vuosi = 1993

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
         emp |      1616    21.83069    19.14118        .02      92.73

--------------------------------------------------------------------------------------------------
-> vuosi = 1994

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
         emp |      1930    17.05204    17.76145          0        235

--------------------------------------------------------------------------------------------------
-> vuosi = 1995

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
         emp |      1914    23.15465    25.23851          0     249.76

--------------------------------------------------------------------------------------------------
-> vuosi = 1996

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
         emp |      1938    27.03094    32.81237       .002     245.74

--------------------------------------------------------------------------------------------------
-> vuosi = 1997

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
         emp |      1942    27.76446    34.64993       .002     241.84

--------------------------------------------------------------------------------------------------
-> vuosi = 1998

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
         emp |      1888    28.55541       35.41       .001     243.19

--------------------------------------------------------------------------------------------------
-> vuosi = 1999

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
         emp |      1874    27.41736    38.63559          0     221.17


. by vuosi: sum tplv;

--------------------------------------------------------------------------------------------------
-> vuosi = 1991

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
        tplv |      1596    7.17e+08    1.73e+09   157237.7   7.04e+09

--------------------------------------------------------------------------------------------------
-> vuosi = 1992

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
        tplv |      1604    7.53e+08    1.87e+09   163819.9   7.50e+09

--------------------------------------------------------------------------------------------------
-> vuosi = 1993

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
        tplv |      1616    7.87e+08    1.89e+09   150727.5   8.02e+09

--------------------------------------------------------------------------------------------------
-> vuosi = 1994

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
        tplv |      1930    4.89e+08    1.06e+09          0   5.92e+09

--------------------------------------------------------------------------------------------------
-> vuosi = 1995

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
        tplv |      1914    5.87e+08    9.14e+08          0   4.57e+09

--------------------------------------------------------------------------------------------------
-> vuosi = 1996

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
        tplv |      1938    7.17e+08    1.01e+09   5165.724   4.32e+09

--------------------------------------------------------------------------------------------------
-> vuosi = 1997

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
        tplv |      1942    8.08e+08    1.13e+09          0   4.29e+09

--------------------------------------------------------------------------------------------------
-> vuosi = 1998

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
        tplv |      1888    9.93e+08    1.52e+09          0   4.80e+09

--------------------------------------------------------------------------------------------------
-> vuosi = 1999

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
        tplv |      1874    1.23e+09    2.38e+09          0   8.22e+09


. gen rd_int=ysyht/tplv;
(8802 missing values generated)

. *generate variable for big patenters;
. gen big_patf=0;

. replace big_patf=1 if firm_patcount>57 & vuosi==1998;
(499 real changes made)

. bysort firm_id: egen big_pat=max(big_patf);

. tab big_pat;

    big_pat |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |     18,690       85.92       85.92
          1 |      3,063       14.08      100.00
------------+-----------------------------------
      Total |     21,753      100.00

. *--------------------------------------------------------------------;
. *generate lags of patent variables;
.  *--------------------------------------------------------------------;
. sort id vuosi;

. gen lagpats=l.pats;
(2859 missing values generated)

. gen lagpat2=l2.pats;
(5424 missing values generated)

. gen lagpat3=l3.pats;
(7883 missing values generated)

. gen lagpat4=l4.pats;
(10298 missing values generated)

. gen lagpat5=l5.pats;
(12661 missing values generated)

. gen lagpat6=l6.pats;
(15000 missing values generated)

. gen lagpat7=l7.pats;
(17297 missing values generated)

. gen lagpat8=l8.pats;
(19567 missing values generated)

. gen lagpsh=l.pats_share;
(2859 missing values generated)

. gen lagpsh2=l2.pats_share;
(5424 missing values generated)

. gen lagpsh3=l3.pats_share;
(7883 missing values generated)

. gen lagpsh4=l4.pats_share;
(10298 missing values generated)

. gen lagpsh5=l5.pats_share;
(12661 missing values generated)

. gen lagpsh6=l6.pats_share;
(15000 missing values generated)

. gen lagcits=l.cits;
(2859 missing values generated)

. gen lagcit2=l2.cits;
(5424 missing values generated)

. gen lagcit3=l3.cits;
(7883 missing values generated)

. gen lagcit4=l4.cits;
(10298 missing values generated)

. gen lagcit5=l5.cits;
(12661 missing values generated)

. gen lagcit6=l6.cits;
(15000 missing values generated)

. gen lagcit7=l7.cits;
(17297 missing values generated)

. gen lagcsh=l.cits_share;
(2859 missing values generated)

. gen lagcsh2=l2.cits_share;
(5424 missing values generated)

. gen lagcsh3=l3.cits_share;
(7883 missing values generated)

. gen lagcsh4=l4.cits_share;
(10298 missing values generated)

. gen lagcsh5=l5.cits_share;
(12661 missing values generated)

. gen lagcsh6=l6.cits_share;
(15000 missing values generated)

. gen lagpatsi=l.pats_indi;
(2859 missing values generated)

. gen lagpat2i=l2.pats_indi;
(5424 missing values generated)

. gen lagpat3i=l3.pats_indi;
(7883 missing values generated)

. gen lagpat4i=l4.pats_indi;
(10298 missing values generated)

. gen lagpat5i=l5.pats_indi;
(12661 missing values generated)

. gen lagpat6i=l6.pats_indi;
(15000 missing values generated)

. gen lagcitsi=l.cits_indi;
(2859 missing values generated)

. gen lagcit2i=l2.cits_indi;
(5424 missing values generated)

. gen lagcit3i=l3.cits_indi;
(7883 missing values generated)

. gen lagcit4i=l4.cits_indi;
(10298 missing values generated)

. gen lagcit5i=l5.cits_indi;
(12661 missing values generated)

. gen lagcit6i=l6.cits_indi;
(15000 missing values generated)

. gen nocits=0;

. replace nocits=1 if pats>0 & pats!=. & cits==0;
(791 real changes made)

. gen cits10=0;

. replace cits10=1 if cits>0 & cits<10;
(1735 real changes made)

. gen cits20=0;

. replace cits20=1 if cits>=10 & cits<20;
(699 real changes made)

. gen cits30=0;

. replace cits30=1 if cits>=20 & cits<30;
(295 real changes made)

. gen topcits=0;

. replace topcits=1 if cits>=30 & cits!=.;
(401 real changes made)

. gen lagnoc=l.nocits;
(2859 missing values generated)

. gen lag10c=l.cits10;
(2859 missing values generated)

. gen lag20c=l.cits20;
(2859 missing values generated)

. gen lag30c=l.cits30;
(2859 missing values generated)

. gen lagtopc=l.topcits;
(2859 missing values generated)

. gen lagnoc2=l2.nocits;
(5424 missing values generated)

. gen lag10c2=l2.cits10;
(5424 missing values generated)

. gen lag20c2=l2.cits20;
(5424 missing values generated)

. gen lag30c2=l2.cits30;
(5424 missing values generated)

. gen lagtopc2=l2.topcits;
(5424 missing values generated)

. gen lagnoc3=l3.nocits;
(7883 missing values generated)

. gen lag10c3=l3.cits10;
(7883 missing values generated)

. gen lag20c3=l3.cits20;
(7883 missing values generated)

. gen lag30c3=l3.cits30;
(7883 missing values generated)

. gen lagtop3=l3.topcits;
(7883 missing values generated)

. gen lagnoc4=l4.nocits;
(10298 missing values generated)

. gen lag10c4=l4.cits10;
(10298 missing values generated)

. gen lag20c4=l4.cits20;
(10298 missing values generated)

. gen lag30c4=l4.cits30;
(10298 missing values generated)

. gen lagtopc4=l4.topcits;
(10298 missing values generated)

. gen lagnoc5=l5.nocits;
(12661 missing values generated)

. gen lag10c5=l5.cits10;
(12661 missing values generated)

. gen lag20c5=l5.cits20;
(12661 missing values generated)

. gen lag30c5=l5.cits30;
(12661 missing values generated)

. gen lagtopc5=l5.topcits;
(12661 missing values generated)

. gen lagnoc6=l6.nocits;
(15000 missing values generated)

. gen lag10c6=l6.cits10;
(15000 missing values generated)

. gen lag20c6=l6.cits20;
(15000 missing values generated)

. gen lag30c6=l6.cits30;
(15000 missing values generated)

. gen lagtopc6=l6.topcits;
(15000 missing values generated)

. *-------------------------------------------------------;
. *interact with new (employer change);
. gen byte new = (tenure==0 & firm_id!=l.firm_id);

. replace new = 0 if f.startyr == l.startyr;
(94 real changes made)

. gen old=0;

. gen lagold=l.old;
(2859 missing values generated)

. gen lagold2=l2.old;
(5424 missing values generated)

. gen lagold3=l3.old;
(7883 missing values generated)

. gen lagold4=l4.old;
(10298 missing values generated)

. gen lagold5=l5.old;
(12661 missing values generated)

. gen lagold6=l6.old;
(15000 missing values generated)

. gen lagnew=l.new;
(2859 missing values generated)

. gen lagnew2 = l2.new;
(5424 missing values generated)

. gen lagnew3 = l3.new;
(7883 missing values generated)

. gen lagnew4 = l4.new;
(10298 missing values generated)

. gen lagnew5 = l5.new;
(12661 missing values generated)

. gen lagnew6 = l6.new;
(15000 missing values generated)

. replace old=1 if new==1 & old==0;
(1395 real changes made)

. replace lagold=1 if new==1 & lagold==0;
(907 real changes made)

. replace lagold2=1 if new==1 & lagold2==0;
(817 real changes made)

. replace lagold3=1 if new==1 & lagold3==0;
(699 real changes made)

. replace lagold4=1 if new==1 & lagold4==0;
(589 real changes made)

. replace lagold5=1 if new==1 & lagold5==0;
(471 real changes made)

. replace lagold6=1 if new==1 & lagold6==0;
(364 real changes made)

. replace lagold=1 if l.new==1 & lagold==0;
(1061 real changes made)

. replace lagold2=1 if l.new==1 & lagold2==0;
(653 real changes made)

. replace lagold3=1 if l.new==1 & lagold3==0;
(591 real changes made)

. replace lagold4=1 if l.new==1 & lagold4==0;
(482 real changes made)

. replace lagold5=1 if l.new==1 & lagold5==0;
(396 real changes made)

. replace lagold6=1 if l.new==1 & lagold6==0;
(295 real changes made)

. replace lagold2=1 if l2.new==1 & lagold2==0;
(824 real changes made)

. replace lagold3=1 if l2.new==1 & lagold3==0;
(486 real changes made)

. replace lagold4=1 if l2.new==1 & lagold4==0;
(436 real changes made)

. replace lagold5=1 if l2.new==1 & lagold5==0;
(329 real changes made)

. replace lagold6=1 if l2.new==1 & lagold6==0;
(252 real changes made)

. replace lagold3=1 if l3.new==1 & lagold3==0;
(647 real changes made)

. replace lagold4=1 if l3.new==1 & lagold4==0;
(355 real changes made)

. replace lagold5=1 if l3.new==1 & lagold5==0;
(304 real changes made)

. replace lagold6=1 if l3.new==1 & lagold6==0;
(205 real changes made)

. replace lagold4=1 if l4.new==1 & lagold4==0;
(520 real changes made)

. replace lagold5=1 if l4.new==1 & lagold5==0;
(272 real changes made)

. replace lagold6=1 if l4.new==1 & lagold6==0;
(216 real changes made)

. replace lagold5=1 if l5.new==1 & lagold5==0;
(382 real changes made)

. replace lagold6=1 if l5.new==1 & lagold6==0;
(184 real changes made)

. replace lagold6=1 if l6.new==1 & lagold6==0;
(294 real changes made)

. *--------------------------------------------------------------------;
. *LIMIT THE SAMPLE TO THOSE OBS USED IN THE EMPIRICAL ANALYSIS;
. *the biggest sample used;
. *--------------------------------------------------------------------;
. xi: reg logwage pats age tenure female  months emp i.vuosi i.sector i.educ i.nuts2;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-48       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: _Isector_48 omitted because of collinearity
note: _Ieduc_51 omitted because of collinearity
note: _Ieduc_58 omitted because of collinearity
note: _Ieduc_67 omitted because of collinearity
note: _Ieduc_88 omitted because of collinearity

      Source |       SS       df       MS              Number of obs =   16035
-------------+------------------------------           F( 93, 15941) =   71.50
       Model |  1793.65257    93  19.2865868           Prob > F      =  0.0000
    Residual |  4300.15183 15941  .269754208           R-squared     =  0.2943
-------------+------------------------------           Adj R-squared =  0.2902
       Total |   6093.8044 16034  .380055158           Root MSE      =  .51938

------------------------------------------------------------------------------
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
        pats |   .0397787   .0070916     5.61   0.000     .0258785    .0536789
         age |   .0136744    .000721    18.97   0.000     .0122611    .0150876
      tenure |   .0072124   .0007105    10.15   0.000     .0058198     .008605
      female |  -.2030272   .0172178   -11.79   0.000    -.2367761   -.1692783
      months |   .1210535   .0046391    26.09   0.000     .1119604    .1301466
         emp |   .0011364   .0001818     6.25   0.000     .0007801    .0014928
_Ivuosi_1992 |  -.0229975    .018571    -1.24   0.216    -.0593988    .0134038
_Ivuosi_1993 |  -.0290896    .018663    -1.56   0.119    -.0656711    .0074919
_Ivuosi_1994 |  -.0256298   .0180043    -1.42   0.155    -.0609203    .0096607
_Ivuosi_1995 |   .0201054   .0180156     1.12   0.264    -.0152072    .0554181
_Ivuosi_1996 |   .0404409    .018057     2.24   0.025     .0050473    .0758346
_Ivuosi_1997 |    .086252   .0181843     4.74   0.000     .0506086    .1218953
_Ivuosi_1998 |   .1615235   .0183709     8.79   0.000     .1255145    .1975325
_Ivuosi_1999 |   .1980013   .0186285    10.63   0.000     .1614873    .2345153
  _Isector_2 |   -3.08945   .5848674    -5.28   0.000    -4.235856   -1.943044
  _Isector_3 |   1.472681   .2837855     5.19   0.000     .9164292    2.028932
  _Isector_4 |  -1.723755   .5861805    -2.94   0.003    -2.872735   -.5747752
  _Isector_5 |   1.027572   .3041678     3.38   0.001     .4313688    1.623775
  _Isector_6 |   1.158611    .267133     4.34   0.000     .6349998    1.682222
  _Isector_7 |    2.39013   .6005109     3.98   0.000     1.213061    3.567199
  _Isector_8 |   1.195276   .2737393     4.37   0.000     .6587159    1.731836
  _Isector_9 |   1.501814   .2997051     5.01   0.000     .9143586     2.08927
 _Isector_10 |   1.130888   .2758909     4.10   0.000     .5901104    1.671665
 _Isector_11 |   1.288978   .2692478     4.79   0.000     .7612221    1.816734
 _Isector_12 |    .810767   .2887129     2.81   0.005      .244857    1.376677
 _Isector_13 |   1.114708   .2689106     4.15   0.000     .5876129    1.641803
 _Isector_14 |   1.127293   .2679092     4.21   0.000     .6021602    1.652425
 _Isector_15 |   1.227408   .2710071     4.53   0.000     .6962039    1.758613
 _Isector_16 |   1.290463   .2702798     4.77   0.000     .7606838    1.820241
 _Isector_17 |   1.118009   .2699217     4.14   0.000     .5889323    1.647086
 _Isector_18 |   1.120357   .2681921     4.18   0.000     .5946705    1.646044
 _Isector_19 |   1.159706   .2677113     4.33   0.000     .6349622    1.684451
 _Isector_20 |     1.1377   .2733132     4.16   0.000     .6019752    1.673424
 _Isector_21 |   1.046995   .2688276     3.89   0.000     .5200629    1.573928
 _Isector_22 |   1.213084    .267929     4.53   0.000     .6879131    1.738255
 _Isector_23 |    1.18873   .2678371     4.44   0.000     .6637389    1.713721
 _Isector_24 |   1.070487   .2774807     3.86   0.000     .5265938    1.614381
 _Isector_25 |   1.213788   .2692632     4.51   0.000     .6860016    1.741574
 _Isector_26 |    1.14263    .272385     4.19   0.000     .6087245    1.676535
 _Isector_27 |   1.051171   .2717218     3.87   0.000     .5185652    1.583776
 _Isector_28 |   1.081112    .273451     3.95   0.000     .5451167    1.617106
 _Isector_29 |   .7646263   .2779588     2.75   0.006     .2197957    1.309457
 _Isector_30 |   1.128528   .2692661     4.19   0.000     .6007359     1.65632
 _Isector_31 |   .6933614   .2749212     2.52   0.012     .1544849    1.232238
 _Isector_32 |    1.24748   .3285835     3.80   0.000     .6034194    1.891541
 _Isector_33 |   .3644977   .2967184     1.23   0.219    -.2171039    .9460992
 _Isector_34 |   .9245294   .3737054     2.47   0.013     .1920247    1.657034
 _Isector_35 |   1.198339     .28443     4.21   0.000     .6408239    1.755854
 _Isector_36 |   1.181763   .2723115     4.34   0.000     .6480019    1.715524
 _Isector_37 |   1.075154   .3729059     2.88   0.004     .3442162    1.806091
 _Isector_38 |   .5312204    .374183     1.42   0.156    -.2022204    1.264661
 _Isector_39 |   .9718926   .2810559     3.46   0.001     .4209913    1.522794
 _Isector_40 |   1.572952   .3727203     4.22   0.000     .8423784    2.303526
 _Isector_41 |   1.263986   .2778927     4.55   0.000     .7192852    1.808687
 _Isector_42 |   1.063476   .2697441     3.94   0.000     .5347469    1.592205
 _Isector_43 |   1.140478   .2677602     4.26   0.000     .6156374    1.665318
 _Isector_44 |   1.598011   .5872432     2.72   0.007     .4469481    2.749074
 _Isector_45 |   .1126623   .2806198     0.40   0.688    -.4373841    .6627086
 _Isector_46 |   1.282258   .2917308     4.40   0.000     .7104332    1.854084
 _Isector_47 |   1.228441    .287647     4.27   0.000     .6646204    1.792261
 _Isector_48 |          0  (omitted)
   _Ieduc_32 |  -.9345248   .2181491    -4.28   0.000    -1.362122   -.5069279
   _Ieduc_33 |  -.0220556   .0971356    -0.23   0.820    -.2124524    .1683412
   _Ieduc_35 |  -.1733771   .0312287    -5.55   0.000    -.2345889   -.1121653
   _Ieduc_36 |  -.0943684   .1257877    -0.75   0.453    -.3409265    .1521897
   _Ieduc_37 |  -.0390106   .1212693    -0.32   0.748    -.2767122     .198691
   _Ieduc_38 |  -.3490685   .1377384    -2.53   0.011    -.6190514   -.0790856
   _Ieduc_51 |          0  (omitted)
   _Ieduc_52 |  -6.015037   .5203402   -11.56   0.000    -7.034963   -4.995112
   _Ieduc_53 |   .2626869   .0606158     4.33   0.000     .1438732    .3815007
   _Ieduc_54 |   .2303665   .2612656     0.88   0.378    -.2817437    .7424766
   _Ieduc_55 |    .004845   .0292485     0.17   0.868    -.0524852    .0621753
   _Ieduc_56 |   .6371563   .5815503     1.10   0.273    -.5027479     1.77706
   _Ieduc_57 |   .6684084   .1336189     5.00   0.000     .4065002    .9303166
   _Ieduc_58 |          0  (omitted)
   _Ieduc_63 |   .3139825   .1034845     3.03   0.002     .1111411    .5168238
   _Ieduc_64 |   .2458271   .0945819     2.60   0.009     .0604359    .4312182
   _Ieduc_65 |   .2467444    .026988     9.14   0.000     .1938449    .2996439
   _Ieduc_66 |  -.1861413   .2156061    -0.86   0.388    -.6087535     .236471
   _Ieduc_67 |          0  (omitted)
   _Ieduc_72 |  -.0002069   .0773817    -0.00   0.998    -.1518838      .15147
   _Ieduc_73 |    .381707   .0829456     4.60   0.000     .2191243    .5442898
   _Ieduc_74 |   .2873785   .0305495     9.41   0.000      .227498     .347259
   _Ieduc_75 |   .4152049   .0262178    15.84   0.000      .363815    .4665948
   _Ieduc_76 |   .5304628   .0673093     7.88   0.000      .398529    .6623967
   _Ieduc_77 |   .2609912   .0575538     4.53   0.000     .1481792    .3738032
   _Ieduc_83 |   .3795094   .2350681     1.61   0.106    -.0812506    .8402694
   _Ieduc_84 |   .4873727    .033592    14.51   0.000     .4215286    .5532169
   _Ieduc_85 |   .5644932   .0298274    18.93   0.000     .5060282    .6229581
   _Ieduc_86 |   .6324551   .0872198     7.25   0.000     .4614944    .8034158
   _Ieduc_87 |   .4891232   .0505777     9.67   0.000     .3899852    .5882613
   _Ieduc_88 |          0  (omitted)
   _Ieduc_99 |  -.0976583    .032649    -2.99   0.003    -.1616541   -.0336625
   _Inuts2_2 |  -.0631363    .010722    -5.89   0.000    -.0841526   -.0421199
   _Inuts2_3 |  -.1329743   .0224263    -5.93   0.000    -.1769324   -.0890163
   _Inuts2_4 |  -.0883641   .0155469    -5.68   0.000    -.1188378   -.0578904
   _Inuts2_5 |  -.1212283     .01612    -7.52   0.000    -.1528254   -.0896313
   _Inuts2_6 |   .3955308   .2638232     1.50   0.134    -.1215924     .912654
       _cons |   7.012251   .2754861    25.45   0.000     6.472267    7.552235
------------------------------------------------------------------------------

. keep if e(sample);
(5718 observations deleted)

. drop if amas1==2;
(39 observations deleted)

. *descriptive statistics;
.  sort vuosi;

. by vuosi: sum wage pats cits age female tenure months emp;

--------------------------------------------------------------------------------------------------
-> vuosi = 1991

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
        wage |      1567    37468.21    16298.57   173.0126   196271.2
        pats |      1567    .1531589    .4429394          0          4
        cits |      1567    1.536492    5.818252          0   78.51032
         age |      1567    37.69304    7.796967         21         63
      female |      1567    .0765795    .2660079          0          1
-------------+--------------------------------------------------------
      tenure |      1567    8.560944    7.431936          0         39
      months |      1567    11.90683    .7497965          2         12
         emp |      1567    26.40377    22.26153        .05     114.29

--------------------------------------------------------------------------------------------------
-> vuosi = 1992

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
        wage |      1576    37292.83     16061.7   311.4442   166596.6
        pats |      1576    .2062183     .566795          0          6
        cits |      1576    2.206603    9.161047          0   137.3093
         age |      1576    38.40736    7.895768         21         64
      female |      1576    .0799492    .2713007          0          1
-------------+--------------------------------------------------------
      tenure |      1576     9.23033    7.530315          0         40
      months |      1576    11.87183     .937443          1         12
         emp |      1576    23.65058    20.83717        .06      96.84

--------------------------------------------------------------------------------------------------
-> vuosi = 1993

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
        wage |      1608    37412.25    15938.28   138.5226   161128.9
        pats |      1608    .1604478    .4892144          0          9
        cits |      1608    1.703516    8.551565          0   120.0586
         age |      1608    39.18159    8.008667         22         65
      female |      1608    .0789801    .2697916          0          1
-------------+--------------------------------------------------------
      tenure |      1608    9.775498    7.672268          0         41
      months |      1608    11.88495     .856076          1         12
         emp |      1608    21.87225    19.15139        .02      92.73

--------------------------------------------------------------------------------------------------
-> vuosi = 1994

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
        wage |      1883    38762.09     17210.8   106.4864   190813.2
        pats |      1883    .1816251    .5112362          0          5
        cits |      1883    1.692942    6.957481          0   92.19802
         age |      1883    40.13436     8.16029         21         64
      female |      1883    .0701009    .2553848          0          1
-------------+--------------------------------------------------------
      tenure |      1883    9.963887    7.796343          0         36
      months |      1883    11.88794     .862908          1         12
         emp |      1883    17.44487    17.78936       .005        235

--------------------------------------------------------------------------------------------------
-> vuosi = 1995

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
        wage |      1877    41279.79    18427.03   127.1994   241877.8
        pats |      1877    .1896644    .5092322          0          5
        cits |      1877    2.639443    11.88048          0   178.0405
         age |      1877    40.93873    8.182225         20         64
      female |      1877    .0729888    .2601875          0          1
-------------+--------------------------------------------------------
      tenure |      1877    10.42461    7.991353          0         37
      months |      1877    11.89771    .7932149          1         12
         emp |      1877    23.57817    25.27782       .004     249.76

--------------------------------------------------------------------------------------------------
-> vuosi = 1996

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
        wage |      1898    43002.26    18546.06   104.8107   202844.6
        pats |      1898    .2407798    .5911684          0          6
        cits |      1898    2.717684    10.16964          0   99.17268
         age |      1898    41.76238    8.189565         22         65
      female |      1898    .0721812     .258856          0          1
-------------+--------------------------------------------------------
      tenure |      1898    10.91465    8.074971          0         38
      months |      1898    11.91886    .6801287          2         12
         emp |      1898    27.33446    32.73828       .002     245.74

--------------------------------------------------------------------------------------------------
-> vuosi = 1997

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
        wage |      1896    46214.86    36234.25   324.8064    1269801
        pats |      1896    .2621308    .5439623          0          4
        cits |      1896    2.511258    8.668545          0   84.98964
         age |      1896    42.66403    8.151954         22         66
      female |      1896    .0706751     .256349          0          1
-------------+--------------------------------------------------------
      tenure |      1896    11.33808    8.304123          0         39
      months |      1896    11.92511    .6781027          1         12
         emp |      1896    28.22952    34.80765       .005     241.84

--------------------------------------------------------------------------------------------------
-> vuosi = 1998

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
        wage |      1866    52287.28    44611.86   170.1804   880924.9
        pats |      1866    .3285102    .6773324          0          8
        cits |      1866    3.440082    12.85653          0    193.718
         age |      1866    43.46945    8.024318         23         68
      female |      1866    .0728832    .2600143          0          1
-------------+--------------------------------------------------------
      tenure |      1866    11.83494    8.426728          0         40
      months |      1866    11.92069    .7032142          1         12
         emp |      1866    28.45077    35.25405       .001     243.19

--------------------------------------------------------------------------------------------------
-> vuosi = 1999

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
        wage |      1825    79555.67    260253.2   36.32859    6009715
        pats |      1825    .4224658    .8115392          0          8
        cits |      1825    3.762788    13.39578          0    159.541
         age |      1825    44.32055    7.924862         24         69
      female |      1825    .0723288    .2591025          0          1
-------------+--------------------------------------------------------
      tenure |      1825     12.3326    8.549235          0         41
      months |      1825    11.67671    1.567778          0         12
         emp |      1825    27.98932    38.82357          0     221.17


.  /* TABLE 1a */
> by vuosi: sum wage pats cits age female tenure months emp if pats>0;

--------------------------------------------------------------------------------------------------
-> vuosi = 1991

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
        wage |       196    43446.18    20717.85   11985.21   196271.2
        pats |       196     1.22449    .5069893          1          4
        cits |       196    12.28409    11.79646          0   78.51032
         age |       196    41.66837    8.258467         26         63
      female |       196    .0612245    .2403556          0          1
-------------+--------------------------------------------------------
      tenure |       196    11.53061    8.039906          1         39
      months |       196          12           0         12         12
         emp |       196    27.48036    24.28075        .16     114.29

--------------------------------------------------------------------------------------------------
-> vuosi = 1992

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
        wage |       242    41999.32    17785.61   311.4442   166596.6
        pats |       242    1.342975      .75268          1          6
        cits |       242    14.37028    19.31192          0   137.3093
         age |       242    41.34711    7.913653         26         63
      female |       242    .0454545    .2087306          0          1
-------------+--------------------------------------------------------
      tenure |       242     12.2438    8.091442          0         40
      months |       242    11.91736    .9117652          1         12
         emp |       242    24.85058    19.36796        .24      63.09

--------------------------------------------------------------------------------------------------
-> vuosi = 1993

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
        wage |       217    40912.93    15872.37   6789.042   95176.32
        pats |       217     1.18894    .7430339          1          9
        cits |       217    12.62329    20.13918          0   120.0586
         age |       217    40.79724    7.926479         25         64
      female |       217    .0645161    .2462381          0          1
-------------+--------------------------------------------------------
      tenure |       217    10.94009    7.794294          0         41
      months |       217    11.95853    .4336896          7         12
         emp |       217    26.18166    20.18196        .14      68.86

--------------------------------------------------------------------------------------------------
-> vuosi = 1994

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
        wage |       269    41216.21    17789.36   709.9095   190813.2
        pats |       269    1.271375    .6668863          1          5
        cits |       269     11.8506    14.80223          0   92.19802
         age |       269    40.92937    7.429183         28         61
      female |       269     .070632    .2566866          0          1
-------------+--------------------------------------------------------
      tenure |       269    10.63197    7.351151          0         36
      months |       269    11.94424    .5536971          4         12
         emp |       269    15.22199    14.75405       .018      45.75

--------------------------------------------------------------------------------------------------
-> vuosi = 1995

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
        wage |       284    43824.77    20343.22   790.6042     212257
        pats |       284    1.253521    .6170329          1          5
        cits |       284    17.44449    26.00909          0   178.0405
         age |       284    41.79577    7.850222         24         62
      female |       284    .0669014    .2502922          0          1
-------------+--------------------------------------------------------
      tenure |       284    11.42958    7.762734          0         35
      months |       284          12           0         12         12
         emp |       284    25.71615    23.41472       .014      88.26

--------------------------------------------------------------------------------------------------
-> vuosi = 1996

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
        wage |       336    45167.44    18578.69   3428.008   145826.8
        pats |       336    1.360119    .6723219          1          6
        cits |       336    15.35168    19.77655          0   99.17268
         age |       336    42.33036    8.084688         25         65
      female |       336       .0625    .2424225          0          1
-------------+--------------------------------------------------------
      tenure |       336    11.52976    7.771302          0         33
      months |       336    11.92262      .63713          4         12
         emp |       336     30.9491    30.47812       .002     162.28

--------------------------------------------------------------------------------------------------
-> vuosi = 1997

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
        wage |       421    49079.81    22557.71   3286.206   198312.5
        pats |       421    1.180523    .4982834          1          4
        cits |       421    11.30961    15.46927          0   84.98964
         age |       421    42.36105    7.711636         27         63
      female |       421      .04038    .1970831          0          1
-------------+--------------------------------------------------------
      tenure |       421    11.66508    7.902347          0         39
      months |       421    11.95487    .4257836          7         12
         emp |       421    31.80342    36.86973       .005     147.99

--------------------------------------------------------------------------------------------------
-> vuosi = 1998

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
        wage |       478    53577.46    48188.65   1897.171   880924.9
        pats |       478    1.282427    .7535693          1          8
        cits |       478    13.42928     22.6237          0    193.718
         age |       478    42.65063    7.924256         24         65
      female |       478    .0753138    .2641735          0          1
-------------+--------------------------------------------------------
      tenure |       478    10.92678    7.810711          0         37
      months |       478    11.92259    .6412383          4         12
         emp |       478    34.87877    38.94197        .01     128.49

--------------------------------------------------------------------------------------------------
-> vuosi = 1999

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
        wage |       560    72322.46      167175   204.1801    3131252
        pats |       560    1.376786    .9125425          1          8
        cits |       560    12.26266    21.93428          0    159.541
         age |       560    42.83393    8.369332         24         66
      female |       560    .0982143    .2978702          0          1
-------------+--------------------------------------------------------
      tenure |       560    11.31429    8.320147          0         38
      months |       560    11.68571    1.533575          0         12
         emp |       560    34.67083    42.97501       .009     221.17


.  /* TABLE 1b */
> 
> tab edu_level;

  edu_level |      Freq.     Percent        Cum.
------------+-----------------------------------
          3 |      1,398        8.74        8.74
          5 |      1,555        9.72       18.46
          6 |      3,492       21.83       40.29
          7 |      6,924       43.29       83.58
          8 |      1,958       12.24       95.82
          9 |        669        4.18      100.00
------------+-----------------------------------
      Total |     15,996      100.00

. tab edu_field;

  edu_field |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        455        2.84        2.84
          2 |         58        0.36        3.21
          3 |        208        1.30        4.51
          4 |      1,777       11.11       15.62
          5 |     12,362       77.28       92.90
          6 |        150        0.94       93.84
          7 |        295        1.84       95.68
          8 |         22        0.14       95.82
          9 |        669        4.18      100.00
------------+-----------------------------------
      Total |     15,996      100.00

.  /* TABLE 1c */
> 
> 
> tab sector;

     sector |      Freq.     Percent        Cum.
------------+-----------------------------------
         01 |          3        0.02        0.02
         10 |         23        0.14        0.16
         13 |          1        0.01        0.17
         14 |         13        0.08        0.25
         15 |        381        2.38        2.63
         16 |          1        0.01        2.64
         17 |         81        0.51        3.14
         18 |         15        0.09        3.24
         20 |         61        0.38        3.62
         21 |        379        2.37        5.99
         22 |         24        0.15        6.14
         23 |        431        2.69        8.83
         24 |      1,907       11.92       20.76
         25 |        152        0.95       21.71
         26 |        194        1.21       22.92
         27 |        242        1.51       24.43
         28 |        740        4.63       29.06
         29 |      3,741       23.39       52.44
         30 |         85        0.53       52.98
         31 |        409        2.56       55.53
         32 |      2,992       18.70       74.24
         33 |      1,173        7.33       81.57
         34 |         50        0.31       81.88
         35 |        299        1.87       83.75
         36 |        103        0.64       84.40
         40 |        124        0.78       85.17
         45 |         82        0.51       85.68
         50 |         46        0.29       85.97
         51 |        268        1.68       87.65
         52 |         68        0.43       88.07
         55 |         10        0.06       88.13
         60 |         16        0.10       88.23
         62 |          4        0.03       88.26
         63 |         29        0.18       88.44
         64 |        110        0.69       89.13
         65 |          5        0.03       89.16
         66 |          4        0.03       89.18
         70 |         38        0.24       89.42
         71 |          4        0.03       89.45
         72 |         47        0.29       89.74
         73 |        224        1.40       91.14
         74 |      1,328        8.30       99.44
         80 |          1        0.01       99.45
         85 |         38        0.24       99.69
         90 |         20        0.13       99.81
         92 |         30        0.19      100.00
------------+-----------------------------------
      Total |     15,996      100.00

.  /* TABLE 1d */
> 
> tab coinv;

      coinv |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |     12,993       81.23       81.23
          1 |        579        3.62       84.85
          2 |        687        4.29       89.14
          3 |        526        3.29       92.43
          4 |        395        2.47       94.90
          5 |        229        1.43       96.33
          6 |        155        0.97       97.30
          7 |        122        0.76       98.06
          8 |         89        0.56       98.62
          9 |         49        0.31       98.92
         10 |         37        0.23       99.16
         11 |         24        0.15       99.31
         12 |         21        0.13       99.44
         13 |         12        0.08       99.51
         14 |         14        0.09       99.60
         15 |          7        0.04       99.64
         16 |          7        0.04       99.69
         17 |         11        0.07       99.76
         18 |          6        0.04       99.79
         19 |          9        0.06       99.85
         20 |          6        0.04       99.89
         21 |          4        0.03       99.91
         22 |          2        0.01       99.92
         23 |          1        0.01       99.93
         24 |          3        0.02       99.95
         26 |          2        0.01       99.96
         27 |          1        0.01       99.97
         28 |          1        0.01       99.97
         29 |          2        0.01       99.99
         32 |          1        0.01       99.99
         36 |          1        0.01      100.00
------------+-----------------------------------
      Total |     15,996      100.00

. sort vuosi;

. by vuosi: tab firm_patcount;

--------------------------------------------------------------------------------------------------
-> vuosi = 1991

     (mean) |
firm_patcou |
         nt |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        528       33.69       33.69
          1 |        203       12.95       46.65
          2 |        105        6.70       53.35
          3 |         19        1.21       54.56
          4 |         12        0.77       55.33
          5 |         58        3.70       59.03
          6 |         55        3.51       62.54
          7 |        198       12.64       75.18
          9 |          3        0.19       75.37
         10 |         41        2.62       77.98
         14 |        109        6.96       84.94
         22 |         62        3.96       88.90
         24 |        174       11.10      100.00
------------+-----------------------------------
      Total |      1,567      100.00

--------------------------------------------------------------------------------------------------
-> vuosi = 1992

     (mean) |
firm_patcou |
         nt |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        598       37.94       37.94
          1 |        106        6.73       44.67
          2 |        130        8.25       52.92
          3 |         31        1.97       54.89
          4 |         77        4.89       59.77
          6 |         20        1.27       61.04
          8 |         38        2.41       63.45
         10 |        181       11.48       74.94
         11 |         39        2.47       77.41
         16 |          2        0.13       77.54
         20 |        116        7.36       84.90
         32 |         62        3.93       88.83
         37 |        176       11.17      100.00
------------+-----------------------------------
      Total |      1,576      100.00

--------------------------------------------------------------------------------------------------
-> vuosi = 1993

     (mean) |
firm_patcou |
         nt |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        525       32.65       32.65
          1 |        162       10.07       42.72
          2 |        123        7.65       50.37
          3 |         93        5.78       56.16
          4 |        125        7.77       63.93
          5 |         38        2.36       66.29
          8 |         33        2.05       68.35
         10 |         23        1.43       69.78
         18 |        101        6.28       76.06
         26 |        239       14.86       90.92
         27 |        146        9.08      100.00
------------+-----------------------------------
      Total |      1,608      100.00

--------------------------------------------------------------------------------------------------
-> vuosi = 1994

     (mean) |
firm_patcou |
         nt |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        859       45.62       45.62
          1 |        184        9.77       55.39
          2 |         67        3.56       58.95
          3 |         65        3.45       62.40
          5 |         28        1.49       63.89
          7 |          9        0.48       64.37
          8 |         22        1.17       65.53
          9 |        107        5.68       71.22
         10 |         89        4.73       75.94
         14 |         63        3.35       79.29
         17 |        171        9.08       88.37
         18 |         62        3.29       91.66
         40 |        157        8.34      100.00
------------+-----------------------------------
      Total |      1,883      100.00

--------------------------------------------------------------------------------------------------
-> vuosi = 1995

     (mean) |
firm_patcou |
         nt |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        768       40.92       40.92
          1 |        341       18.17       59.08
          2 |        105        5.59       64.68
          3 |         61        3.25       67.93
          5 |        107        5.70       73.63
          6 |         54        2.88       76.51
          7 |          1        0.05       76.56
         10 |         29        1.55       78.10
         13 |         64        3.41       81.51
         19 |         54        2.88       84.39
         25 |        130        6.93       91.32
         40 |        163        8.68      100.00
------------+-----------------------------------
      Total |      1,877      100.00

--------------------------------------------------------------------------------------------------
-> vuosi = 1996

     (mean) |
firm_patcou |
         nt |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        809       42.62       42.62
          1 |        143        7.53       50.16
          2 |         72        3.79       53.95
          3 |         71        3.74       57.69
          4 |         54        2.85       60.54
          5 |          7        0.37       60.91
          6 |          3        0.16       61.06
          8 |         33        1.74       62.80
          9 |         77        4.06       66.86
         10 |         28        1.48       68.34
         13 |         66        3.48       71.81
         15 |         28        1.48       73.29
         18 |          1        0.05       73.34
         29 |        167        8.80       82.14
         36 |        205       10.80       92.94
         40 |        134        7.06      100.00
------------+-----------------------------------
      Total |      1,898      100.00

--------------------------------------------------------------------------------------------------
-> vuosi = 1997

     (mean) |
firm_patcou |
         nt |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        750       39.56       39.56
          1 |        187        9.86       49.42
          2 |         92        4.85       54.27
          3 |         41        2.16       56.43
          4 |         51        2.69       59.12
          5 |         79        4.17       63.29
          6 |         79        4.17       67.46
          7 |          9        0.47       67.93
          8 |         61        3.22       71.15
          9 |         19        1.00       72.15
         12 |         28        1.48       73.63
         31 |        164        8.65       82.28
         44 |        137        7.23       89.50
         53 |        199       10.50      100.00
------------+-----------------------------------
      Total |      1,896      100.00

--------------------------------------------------------------------------------------------------
-> vuosi = 1998

     (mean) |
firm_patcou |
         nt |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        769       41.21       41.21
          1 |        194       10.40       51.61
          2 |         77        4.13       55.73
          3 |        103        5.52       61.25
          4 |         29        1.55       62.81
          5 |         19        1.02       63.83
          6 |         58        3.11       66.93
          8 |         19        1.02       67.95
         10 |         51        2.73       70.69
         11 |         29        1.55       72.24
         16 |         26        1.39       73.63
         58 |        190       10.18       83.82
         63 |        164        8.79       92.60
         85 |        138        7.40      100.00
------------+-----------------------------------
      Total |      1,866      100.00

--------------------------------------------------------------------------------------------------
-> vuosi = 1999

     (mean) |
firm_patcou |
         nt |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        837       45.86       45.86
          1 |        294       16.11       61.97
          2 |         76        4.16       66.14
          3 |        101        5.53       71.67
          4 |         28        1.53       73.21
          5 |         24        1.32       74.52
          6 |         22        1.21       75.73
         11 |         42        2.30       78.03
         13 |        101        5.53       83.56
         88 |        162        8.88       92.44
         90 |        138        7.56      100.00
------------+-----------------------------------
      Total |      1,825      100.00


. sum rd_int;

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
      rd_int |     12847     3.58637     217.857          0      14257

. sum nocits;

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
      nocits |     15996    .0355714    .1852248          0          1

. sum cits10;

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
      cits10 |     15996    .0807702    .2724904          0          1

. sum cits20;

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
      cits20 |     15996     .034196    .1817381          0          1

. sum cits30;

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
      cits30 |     15996    .0155664    .1237943          0          1

. sum topcits;

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
     topcits |     15996    .0216304     .145478          0          1

. histogram pats, discrete frequency;
(start=0, width=1)

. graph save graph1a.gph, replace;
(file graph1a.gph saved)

. histogram totpat, discrete frequency;
(start=1, width=1)

. graph save graph2a.gph, replace;
(file graph2a.gph saved)

. histogram cits if pats>0, frequency;
(bin=34, start=0, width=5.6975879)

. graph save graph3a.gph, replace;
(file graph3a.gph saved)

. histogram pats if pats>0, discrete frequency;
(start=1, width=1)

. graph save graph4a.gph, replace;
(file graph4a.gph saved)

. histogram totpat if vuosi==1999, discrete frequency;
(start=1, width=1)

. graph save graph5a.gph, replace;
(file graph5a.gph saved)

. gen avgcits=0;

. replace avgcits=cits/pats if pats>0 & pats!=.;
(2434 real changes made)

. histogram avgcits if pats>0, frequency;
(bin=34, start=0, width=4.0385087)

. graph save graph6a.gph, replace;
(file graph6a.gph saved)

. *--------------------------------------------------------------------;
. *REGRESSION STUFF BEGINS HERE;
. *--------------------------------------------------------------------;
. *first make vectors of explanatory variables;
. *--------------------------------------------------------------------;
. *WITH GRANTED PATENTS;
. *--------------------------------------------------------------------;
. #delimit ;
delimiter now ;
. global expl_0 "age age2 tenure female  months emp i.vuosi i.sector  i.educ i.nuts2";

. global expl_1 "age age2 tenure  female  months emp  i.vuosi i.sector  i.educ i.nuts2 pats";

.  global expl_2 "age age2 tenure  female  months emp  i.vuosi i.sector  i.educ i.nuts2 pats lagpa
> ts";

.  global expl_3 "age age2 tenure  female  months emp  i.vuosi i.sector  i.educ i.nuts2 pats lagpa
> ts lagpat2";

. global expl_4 "age age2 tenure  female  months emp  i.vuosi i.sector  i.educ i.nuts2 pats lagpat
> s lagpat2 lagpat3";

. global expl_5 "age age2 tenure  female  months emp  i.vuosi i.sector  i.educ i.nuts2 pats lagpat
> s lagpat2 lagpat3 lagpat4";

. global expl_6 "age age2 tenure  female  months emp  i.vuosi i.sector i.educ i.nuts2 pats lagpats
>  lagpat2 lagpat3 lagpat4 lagpat5";

. global expl_7 "age age2 tenure  female  months emp  i.vuosi i.sector  i.educ i.nuts2 pats lagpat
> s lagpat2 lagpat3 lagpat4 lagpat5 lagpat6";

. global expl_8 "age age2 tenure  female  months emp  i.vuosi i.sector  i.educ i.nuts2 pats lagpat
> s lagpat2 lagpat3 lagpat4 lagpat5 lagpat6 lagpat7";

. *--------------------------------------------------------------------;
. *WITH CITATIONS;
.  *--------------------------------------------------------------------;
. global expl_10 "age age2 tenure  female  months emp  i.vuosi i.sector  i.educ i.nuts2";

. global expl_11 "age age2 tenure  female  months emp  i.vuosi i.sector  i.educ i.nuts2 pats ";

. global expl_12 "age age2 tenure  female  months emp  i.vuosi  i.sector i.educ i.nuts2 pats lagci
> ts";

. global expl_13 "age age2 tenure  female  months emp  i.vuosi i.sector  i.educ i.nuts2 pats lagci
> ts lagcit2";

. global expl_14 "age age2 tenure  female  months emp  i.vuosi  i.sector i.educ i.nuts2 pats lagci
> ts lagcit2 lagcit3";

. global expl_15 "age age2 tenure  female  months emp  i.vuosi  i.sector i.educ i.nuts2 pats lagci
> ts lagcit2 lagcit3 lagcit4";

. global expl_16 "age age2 tenure  female  months emp  i.vuosi i.sector  i.educ i.nuts2 pats lagci
> ts lagcit2 lagcit3 lagcit4 lagcit5";

. global expl_17 "age age2 tenure  female  months emp  i.vuosi i.sector  i.educ i.nuts2 pats lagci
> ts lagcit2 lagcit3 lagcit4 lagcit5 lagcit6";

. global expl_18 "age age2 tenure  female  months emp  i.vuosi i.sector  i.educ i.nuts2 pats lagci
> ts lagcit2 lagcit3 lagcit4 lagcit5 lagcit6 lagcit7";

. global expl_cg "nocits
> cits10
> cits20
> cits30
> topcits
> lagnoc
>  lag10c
>  lag20c
>  lag30c
>  lagtopc
>  lagnoc2
>  lag10c2
>  lag20c2
>  lag30c2
>  lagtopc2
>  lagnoc3
>  lag10c3
>  lag20c3
>  lag30c3
>  lagtop3
>  lagnoc4
>  lag10c4
>  lag20c4
>  lag30c4
>  lagtopc4
>  lagnoc5
>  lag10c5
>  lag20c5
>  lag30c5
>  lagtopc5
> lagnoc6
>  lag10c6
>  lag20c6
>  lag30c6
>  lagtopc6";

. *-----------------------------------------------------------------------------------------------
> ------;
. *-----------------------------------------------------------------------------------------------
> ------;
. *ALL REGRESSIONS BEGIN HERE;
. *-----------------------------------------------------------------------------------------------
> ------;
. *-----------------------------------------------------------------------------------------------
> ------;
. #delimit ;
delimiter now ;
. sort id vuosi;

. *-----------------------------------------------------------------------------------------------
> ------;
. *main specifications;
. *-----------------------------------------------------------------------------------------------
> ------;
. *patent counts;
. xi: reg logwage $expl_1, cluster(id);
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)

Linear regression                                      Number of obs =   15996
                                                       F( 83,  2155) =       .
                                                       Prob > F      =       .
                                                       R-squared     =  0.3301
                                                       Root MSE      =  .46867

                                  (Std. Err. adjusted for 2156 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .1104999   .0082405    13.41   0.000     .0943397      .12666
        age2 |  -.0011283   .0001019   -11.07   0.000    -.0013281   -.0009284
      tenure |   .0067678   .0013485     5.02   0.000     .0041232    .0094123
      female |  -.2129413   .0228236    -9.33   0.000    -.2576998   -.1681828
      months |   .1141763   .0091579    12.47   0.000      .096217    .1321356
         emp |   .0007823   .0002794     2.80   0.005     .0002344    .0013302
_Ivuosi_1992 |  -.0270073   .0102752    -2.63   0.009    -.0471576    -.006857
_Ivuosi_1993 |  -.0437611   .0112098    -3.90   0.000    -.0657443   -.0217779
_Ivuosi_1994 |  -.0274019    .012126    -2.26   0.024    -.0511818   -.0036219
_Ivuosi_1995 |   .0077593   .0129335     0.60   0.549    -.0176041    .0331226
_Ivuosi_1996 |   .0262977   .0128589     2.05   0.041     .0010804    .0515149
_Ivuosi_1997 |   .0642494   .0123931     5.18   0.000     .0399458     .088553
_Ivuosi_1998 |   .1327071   .0138754     9.56   0.000     .1054966    .1599176
_Ivuosi_1999 |   .1761447   .0193675     9.09   0.000     .1381637    .2141257
  _Isector_2 |  -.1011349   .1544532    -0.65   0.513    -.4040279     .201758
  _Isector_3 |  -3.065319   .1408753   -21.76   0.000    -3.341585   -2.789054
  _Isector_4 |   -.596574   .1363209    -4.38   0.000    -.8639082   -.3292398
  _Isector_5 |  -.3727406   .0876937    -4.25   0.000    -.5447138   -.2007674
  _Isector_6 |   1.112695   .4125357     2.70   0.007     .3036852    1.921704
  _Isector_7 |  -.3040694   .1286608    -2.36   0.018    -.5563816   -.0517571
  _Isector_8 |  -.1295862   .3590484    -0.36   0.718    -.8337036    .5745311
  _Isector_9 |  -.3926061   .1496026    -2.62   0.009    -.6859866   -.0992257
 _Isector_10 |  -.2494027   .1066814    -2.34   0.019    -.4586118   -.0401936
 _Isector_11 |  -.7683885   .1146206    -6.70   0.000    -.9931669   -.5436101
 _Isector_12 |  -.4227037   .0983597    -4.30   0.000    -.6155935   -.2298138
 _Isector_13 |  -.4277501   .0959291    -4.46   0.000    -.6158733   -.2396269
 _Isector_14 |  -.3469804   .1218592    -2.85   0.004    -.5859543   -.1080065
 _Isector_15 |  -.2641407   .1228316    -2.15   0.032    -.5050215   -.0232598
 _Isector_16 |  -.4201896   .1027667    -4.09   0.000    -.6217218   -.2186574
 _Isector_17 |  -.4377883   .0992784    -4.41   0.000    -.6324798   -.2430968
 _Isector_18 |  -.3883054   .0955223    -4.07   0.000    -.5756308     -.20098
 _Isector_19 |  -.4005849   .1075764    -3.72   0.000    -.6115493   -.1896205
 _Isector_20 |  -.4747692   .0994448    -4.77   0.000    -.6697869   -.2797515
 _Isector_21 |  -.3075965   .0972271    -3.16   0.002    -.4982653   -.1169277
 _Isector_22 |  -.3703125   .0960683    -3.85   0.000    -.5587087   -.1819163
 _Isector_23 |  -.4630351   .1302668    -3.55   0.000    -.7184967   -.2075734
 _Isector_24 |  -.3341093   .1034552    -3.23   0.001    -.5369918   -.1312269
 _Isector_25 |  -.4361288   .1193652    -3.65   0.000    -.6702118   -.2020458
 _Isector_26 |  -.5319955   .1095852    -4.85   0.000    -.7468993   -.3170917
 _Isector_27 |  -.4064108   .1272331    -3.19   0.001    -.6559233   -.1568983
 _Isector_28 |  -.5134387   .1184642    -4.33   0.000    -.7457548   -.2811227
 _Isector_29 |  -.4346263   .1173517    -3.70   0.000    -.6647607   -.2044919
 _Isector_30 |  -.6313655   .1209077    -5.22   0.000    -.8684735   -.3942575
 _Isector_31 |  -.0630034   .4138116    -0.15   0.879     -.874515    .7485081
 _Isector_32 |  -.2909403   .2209772    -1.32   0.188     -.724291    .1424105
 _Isector_33 |  -.4903212   .1173298    -4.18   0.000    -.7204126   -.2602297
 _Isector_34 |  -.3640961   .1452662    -2.51   0.012    -.6489726   -.0792195
 _Isector_35 |   -.375517   .1233036    -3.05   0.002    -.6173235   -.1337105
 _Isector_36 |  -.4675385   .0975163    -4.79   0.000    -.6587743   -.2763027
 _Isector_37 |  -1.004744   .4288338    -2.34   0.019    -1.845715    -.163773
 _Isector_38 |  -.5587875   .1313292    -4.25   0.000    -.8163328   -.3012423
 _Isector_39 |   .0089582   .2504537     0.04   0.971    -.4821978    .5001143
 _Isector_40 |  -.2846905   .1181577    -2.41   0.016    -.5164056   -.0529755
 _Isector_41 |  -.4541923   .1062226    -4.28   0.000    -.6625017   -.2458828
 _Isector_42 |  -.3800026   .0974453    -3.90   0.000    -.5710991    -.188906
 _Isector_43 |  -.2410913   .1216963    -1.98   0.048    -.4797457   -.0024369
 _Isector_44 |  -.6195266   .1938708    -3.20   0.001      -.99972   -.2393332
 _Isector_45 |  -.2163469    .219155    -0.99   0.324    -.6461241    .2134304
 _Isector_46 |   -.479599   .1068509    -4.49   0.000    -.6891405   -.2700575
   _Ieduc_32 |   -.103951    .070158    -1.48   0.139    -.2415354    .0336335
   _Ieduc_33 |  -.1983245   .0923067    -2.15   0.032     -.379344    -.017305
   _Ieduc_35 |  -.2061693   .0523151    -3.94   0.000    -.3087628   -.1035759
   _Ieduc_36 |   .0849274   .3333641     0.25   0.799    -.5688214    .7386762
   _Ieduc_37 |  -.1553673   .3339237    -0.47   0.642    -.8102136    .4994789
   _Ieduc_38 |  -.7368442   .4015218    -1.84   0.067    -1.524255    .0505664
   _Ieduc_53 |   .1956115   .1505462     1.30   0.194    -.0996195    .4908425
   _Ieduc_54 |   .2751794   .0480403     5.73   0.000     .1809691    .3693896
   _Ieduc_55 |  -.0524416     .04665    -1.12   0.261    -.1439252    .0390421
   _Ieduc_56 |    .811213   .0482637    16.81   0.000     .7165648    .9058612
   _Ieduc_57 |   .0789334   .1566386     0.50   0.614    -.2282451    .3861119
   _Ieduc_63 |   .1506478   .1641326     0.92   0.359    -.1712269    .4725225
   _Ieduc_64 |   .1556055   .1620428     0.96   0.337     -.162171     .473382
   _Ieduc_65 |   .1814101   .0441524     4.11   0.000     .0948244    .2679958
   _Ieduc_66 |  -.2498762   .0599739    -4.17   0.000    -.3674889   -.1322635
   _Ieduc_72 |  -.0138978   .0767146    -0.18   0.856    -.1643402    .1365445
   _Ieduc_73 |   .3769941   .1073585     3.51   0.000     .1664571     .587531
   _Ieduc_74 |   .2238831   .0472986     4.73   0.000     .1311274    .3166388
   _Ieduc_75 |   .3636759   .0433009     8.40   0.000       .27876    .4485918
   _Ieduc_76 |   .4398016   .0728582     6.04   0.000     .2969219    .5826813
   _Ieduc_77 |    .429571   .0731538     5.87   0.000     .2861116    .5730303
   _Ieduc_83 |   .2884685    .053092     5.43   0.000     .1843516    .3925853
   _Ieduc_84 |   .3923221   .0541975     7.24   0.000     .2860372    .4986071
   _Ieduc_85 |   .4862121   .0501499     9.70   0.000     .3878649    .5845594
   _Ieduc_86 |   .5064574   .1001238     5.06   0.000     .3101081    .7028066
   _Ieduc_87 |   .4591681    .111318     4.12   0.000     .2408662      .67747
   _Ieduc_99 |  -.1421357   .0607324    -2.34   0.019    -.2612359   -.0230356
   _Inuts2_2 |  -.0726426   .0183454    -3.96   0.000    -.1086192   -.0366661
   _Inuts2_3 |  -.1087236   .0331601    -3.28   0.001    -.1737528   -.0436944
   _Inuts2_4 |  -.0629077   .0199475    -3.15   0.002    -.1020262   -.0237893
   _Inuts2_5 |    -.08731   .0282209    -3.09   0.002     -.142653   -.0319671
   _Inuts2_6 |   .4571547   .0837677     5.46   0.000     .2928808    .6214285
        pats |     .03535   .0075928     4.66   0.000     .0204601      .05024
       _cons |   6.724254   .2202252    30.53   0.000     6.292378     7.15613
------------------------------------------------------------------------------

. xi: reg logwage $expl_2, cluster(id);
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: _Ivuosi_1993 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_43 omitted because of collinearity

Linear regression                                      Number of obs =   14161
                                                       F( 83,  2126) =       .
                                                       Prob > F      =       .
                                                       R-squared     =  0.2830
                                                       Root MSE      =   .4657

                                  (Std. Err. adjusted for 2127 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .1103179   .0091919    12.00   0.000     .0922919    .1283439
        age2 |  -.0011259   .0001117   -10.08   0.000     -.001345   -.0009069
      tenure |   .0064244   .0013703     4.69   0.000     .0037373    .0091116
      female |  -.2230281   .0235125    -9.49   0.000    -.2691379   -.1769182
      months |   .0541331   .0126035     4.30   0.000     .0294165    .0788497
         emp |     .00083   .0002947     2.82   0.005      .000252     .001408
_Ivuosi_1992 |   .0130386   .0109741     1.19   0.235    -.0084824    .0345596
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |   .0241445   .0098265     2.46   0.014      .004874    .0434151
_Ivuosi_1995 |   .0567545   .0119281     4.76   0.000     .0333625    .0801465
_Ivuosi_1996 |   .0778257   .0121672     6.40   0.000     .0539648    .1016867
_Ivuosi_1997 |   .1116845   .0114371     9.77   0.000     .0892554    .1341136
_Ivuosi_1998 |   .1762735   .0133935    13.16   0.000     .1500077    .2025394
_Ivuosi_1999 |   .2024315    .019231    10.53   0.000      .164718     .240145
  _Isector_2 |  -.1064823    .150685    -0.71   0.480    -.4019878    .1890231
  _Isector_3 |          0  (omitted)
  _Isector_4 |  -.6031238   .1368175    -4.41   0.000    -.8714338   -.3348137
  _Isector_5 |  -.3662173   .0841979    -4.35   0.000    -.5313363   -.2010984
  _Isector_6 |          0  (omitted)
  _Isector_7 |  -.2727937   .1341695    -2.03   0.042     -.535911   -.0096765
  _Isector_8 |  -.1740447   .3602693    -0.48   0.629    -.8805618    .5324725
  _Isector_9 |  -.3895009   .1444486    -2.70   0.007    -.6727762   -.1062256
 _Isector_10 |   -.248127   .1048398    -2.37   0.018    -.4537263   -.0425277
 _Isector_11 |  -.7543449   .1139452    -6.62   0.000    -.9778006   -.5308891
 _Isector_12 |  -.4303932   .0960064    -4.48   0.000    -.6186696   -.2421169
 _Isector_13 |  -.4237008   .0933587    -4.54   0.000    -.6067847   -.2406169
 _Isector_14 |   -.323734   .1176595    -2.75   0.006    -.5544737   -.0929943
 _Isector_15 |  -.2282685   .1144663    -1.99   0.046    -.4527462   -.0037908
 _Isector_16 |  -.4182354   .1013075    -4.13   0.000    -.6169075   -.2195632
 _Isector_17 |  -.4318731   .0966386    -4.47   0.000    -.6213892    -.242357
 _Isector_18 |  -.3891248   .0929901    -4.18   0.000    -.5714858   -.2067638
 _Isector_19 |  -.3788083   .1026577    -3.69   0.000    -.5801284   -.1774882
 _Isector_20 |   -.465127   .0975496    -4.77   0.000    -.6564296   -.2738244
 _Isector_21 |  -.3019019   .0953473    -3.17   0.002    -.4888856   -.1149181
 _Isector_22 |  -.3698267   .0936434    -3.95   0.000    -.5534689   -.1861845
 _Isector_23 |  -.4683233   .1289674    -3.63   0.000    -.7212388   -.2154077
 _Isector_24 |   -.328311   .1021834    -3.21   0.001    -.5287008   -.1279212
 _Isector_25 |  -.4417333   .1212694    -3.64   0.000    -.6795523   -.2039144
 _Isector_26 |  -.5375978    .108302    -4.96   0.000    -.7499867   -.3252089
 _Isector_27 |  -.3844766   .1221042    -3.15   0.002    -.6239328   -.1450203
 _Isector_28 |   -.536882   .1133956    -4.73   0.000    -.7592599   -.3145041
 _Isector_29 |  -.4371099   .1197854    -3.65   0.000    -.6720187    -.202201
 _Isector_30 |  -.6448841   .1233008    -5.23   0.000    -.8866869   -.4030813
 _Isector_31 |  -.0771525   .5061048    -0.15   0.879    -1.069665    .9153597
 _Isector_32 |  -.4773334   .2287256    -2.09   0.037    -.9258828    -.028784
 _Isector_33 |  -.5183521   .1174447    -4.41   0.000    -.7486706   -.2880336
 _Isector_34 |  -.3807495   .1573371    -2.42   0.016    -.6893003   -.0721987
 _Isector_35 |   -.371531   .1203483    -3.09   0.002    -.6075438   -.1355183
 _Isector_36 |  -.5278785   .1030967    -5.12   0.000    -.7300594   -.3256976
 _Isector_37 |  -.5570948   .1614921    -3.45   0.001    -.8737938   -.2403958
 _Isector_38 |  -.5710608   .1257254    -4.54   0.000    -.8176183   -.3245032
 _Isector_39 |  -.0081798   .2716683    -0.03   0.976    -.5409432    .5245835
 _Isector_40 |  -.2675781   .1130454    -2.37   0.018    -.4892691    -.045887
 _Isector_41 |   -.455128   .1039372    -4.38   0.000    -.6589572   -.2512989
 _Isector_42 |  -.3768707   .0950333    -3.97   0.000    -.5632387   -.1905027
 _Isector_43 |          0  (omitted)
 _Isector_44 |  -.6070387   .1914943    -3.17   0.002    -.9825744   -.2315029
 _Isector_45 |  -.2162809   .2172162    -1.00   0.320    -.6422594    .2096975
 _Isector_46 |  -.4793793   .1050504    -4.56   0.000    -.6853915    -.273367
   _Ieduc_32 |   -.126553   .0744713    -1.70   0.089    -.2725971    .0194912
   _Ieduc_33 |  -.2272896   .0943783    -2.41   0.016    -.4123729   -.0422063
   _Ieduc_35 |  -.2249024   .0586732    -3.83   0.000    -.3399652   -.1098396
   _Ieduc_36 |   .0234831   .3561921     0.07   0.947    -.6750383    .7220045
   _Ieduc_37 |  -.1445017   .3499855    -0.41   0.680    -.8308515     .541848
   _Ieduc_38 |  -.7904731    .404881    -1.95   0.051    -1.584477    .0035311
   _Ieduc_53 |   .1815627   .1506104     1.21   0.228    -.1137964    .4769218
   _Ieduc_54 |   .2587559   .0565922     4.57   0.000      .147774    .3697378
   _Ieduc_55 |   -.080873   .0533126    -1.52   0.129    -.1854233    .0236774
   _Ieduc_56 |   .8518062   .0802583    10.61   0.000     .6944132    1.009199
   _Ieduc_57 |   .0355105   .1609109     0.22   0.825    -.2800488    .3510698
   _Ieduc_63 |   .0959387   .1640944     0.58   0.559    -.2258636     .417741
   _Ieduc_64 |   .1139106   .1839217     0.62   0.536    -.2467746    .4745957
   _Ieduc_65 |   .1551752   .0512283     3.03   0.002     .0547124    .2556381
   _Ieduc_66 |  -.2760352   .0643423    -4.29   0.000    -.4022156   -.1498549
   _Ieduc_72 |  -.0537991   .0884576    -0.61   0.543    -.2272716    .1196734
   _Ieduc_73 |   .3387722    .113273     2.99   0.003     .1166347    .5609097
   _Ieduc_74 |    .195575   .0539167     3.63   0.000     .0898399      .30131
   _Ieduc_75 |   .3415125   .0504276     6.77   0.000       .24262     .440405
   _Ieduc_76 |    .411354   .0776389     5.30   0.000     .2590978    .5636103
   _Ieduc_77 |   .3969099   .0766279     5.18   0.000     .2466365    .5471834
   _Ieduc_83 |   .2598651   .0579767     4.48   0.000     .1461682     .373562
   _Ieduc_84 |   .3630685   .0598758     6.06   0.000     .2456473    .4804898
   _Ieduc_85 |   .4669233   .0567844     8.22   0.000     .3555646    .5782821
   _Ieduc_86 |    .484415   .1007019     4.81   0.000     .2869306    .6818994
   _Ieduc_87 |   .3987127    .118919     3.35   0.001     .1655029    .6319225
   _Ieduc_99 |   -.168408   .0667668    -2.52   0.012    -.2993431   -.0374728
   _Inuts2_2 |  -.0748375    .019161    -3.91   0.000    -.1124138   -.0372612
   _Inuts2_3 |  -.1171397   .0345782    -3.39   0.001    -.1849503   -.0493291
   _Inuts2_4 |  -.0655596   .0204888    -3.20   0.001    -.1057398   -.0253794
   _Inuts2_5 |   -.093199   .0294547    -3.16   0.002     -.150962    -.035436
   _Inuts2_6 |   .4321025   .0805578     5.36   0.000     .2741222    .5900827
        pats |   .0314236    .007505     4.19   0.000     .0167057    .0461414
     lagpats |   .0148438   .0092186     1.61   0.108    -.0032346    .0329222
       _cons |   7.431484   .2779347    26.74   0.000     6.886432    7.976536
------------------------------------------------------------------------------

.  /* TABLE 2 */
> xi: reg logwage $expl_3, cluster(id);
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_43 omitted because of collinearity

Linear regression                                      Number of obs =   12357
                                                       F( 81,  2095) =       .
                                                       Prob > F      =       .
                                                       R-squared     =  0.2677
                                                       Root MSE      =  .46888

                                  (Std. Err. adjusted for 2096 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .1099446   .0102625    10.71   0.000     .0898189    .1300703
        age2 |  -.0011196   .0001229    -9.11   0.000    -.0013606   -.0008785
      tenure |   .0062803   .0014049     4.47   0.000     .0035252    .0090354
      female |  -.2202281   .0238453    -9.24   0.000     -.266991   -.1734652
      months |   .0328445   .0113866     2.88   0.004     .0105143    .0551747
         emp |   .0007667   .0003234     2.37   0.018     .0001324     .001401
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |   .0298742   .0098945     3.02   0.003     .0104702    .0492783
_Ivuosi_1995 |   .0628337   .0121981     5.15   0.000      .038912    .0867554
_Ivuosi_1996 |   .0814362   .0124138     6.56   0.000     .0570916    .1057808
_Ivuosi_1997 |   .1132426   .0116742     9.70   0.000     .0903484    .1361368
_Ivuosi_1998 |   .1802841   .0132461    13.61   0.000     .1543073     .206261
_Ivuosi_1999 |   .2008287   .0195233    10.29   0.000     .1625416    .2391157
  _Isector_2 |  -.0831524   .1417121    -0.59   0.557    -.3610635    .1947587
  _Isector_3 |          0  (omitted)
  _Isector_4 |  -.5945918   .1330455    -4.47   0.000    -.8555069   -.3336766
  _Isector_5 |  -.3631635   .0810803    -4.48   0.000      -.52217   -.2041571
  _Isector_6 |          0  (omitted)
  _Isector_7 |  -.2558746   .1325984    -1.93   0.054     -.515913    .0041638
  _Isector_8 |  -.1874523   .3657667    -0.51   0.608    -.9047563    .5298516
  _Isector_9 |  -.3872514   .1441281    -2.69   0.007    -.6699005   -.1046022
 _Isector_10 |    -.23017   .1042111    -2.21   0.027     -.434538    -.025802
 _Isector_11 |   -.765748   .1154785    -6.63   0.000    -.9922125   -.5392834
 _Isector_12 |  -.4146925   .0944257    -4.39   0.000    -.5998704   -.2295145
 _Isector_13 |  -.4068168   .0913435    -4.45   0.000    -.5859503   -.2276833
 _Isector_14 |  -.3159341   .1192504    -2.65   0.008    -.5497957   -.0820725
 _Isector_15 |   -.209783   .1133806    -1.85   0.064    -.4321335    .0125674
 _Isector_16 |   -.393612   .1003101    -3.92   0.000    -.5903299   -.1968941
 _Isector_17 |  -.4042164   .0949439    -4.26   0.000    -.5904106   -.2180221
 _Isector_18 |  -.3722228   .0909753    -4.09   0.000    -.5506341   -.1938115
 _Isector_19 |  -.3649737   .0996821    -3.66   0.000      -.56046   -.1694874
 _Isector_20 |  -.4482928   .0963929    -4.65   0.000    -.6373286   -.2592569
 _Isector_21 |  -.2730671   .0944236    -2.89   0.004    -.4582409   -.0878933
 _Isector_22 |  -.3615444   .0917394    -3.94   0.000    -.5414541   -.1816346
 _Isector_23 |  -.4657714   .1289056    -3.61   0.000    -.7185677   -.2129751
 _Isector_24 |  -.2937749   .1009185    -2.91   0.004    -.4916858    -.095864
 _Isector_25 |  -.4304346   .1218669    -3.53   0.000    -.6694274   -.1914419
 _Isector_26 |  -.5365066    .108446    -4.95   0.000    -.7491797   -.3238335
 _Isector_27 |  -.3565476   .1157909    -3.08   0.002    -.5836247   -.1294704
 _Isector_28 |  -.4987896   .1089832    -4.58   0.000    -.7125162    -.285063
 _Isector_29 |   -.425644   .1203729    -3.54   0.000     -.661707    -.189581
 _Isector_30 |  -.6221383   .1260564    -4.94   0.000     -.869347   -.3749296
 _Isector_31 |   .2716416   .4249639     0.64   0.523    -.5617539    1.105037
 _Isector_32 |   -.266184   .2363613    -1.13   0.260    -.7297113    .1973434
 _Isector_33 |  -.5135034   .1214705    -4.23   0.000    -.7517188    -.275288
 _Isector_34 |  -.3923993   .1750464    -2.24   0.025    -.7356824   -.0491163
 _Isector_35 |  -.3565936   .1171329    -3.04   0.002    -.5863025   -.1268846
 _Isector_36 |  -.4636321   .0916043    -5.06   0.000     -.643277   -.2839873
 _Isector_37 |  -.5618037   .1647287    -3.41   0.001    -.8848527   -.2387548
 _Isector_38 |  -.5598257   .1218428    -4.59   0.000    -.7987712   -.3208803
 _Isector_39 |  -.0032611   .2794929    -0.01   0.991    -.5513737    .5448516
 _Isector_40 |  -.2579308   .1145522    -2.25   0.024    -.4825787   -.0332828
 _Isector_41 |  -.4344694   .1024317    -4.24   0.000    -.6353478    -.233591
 _Isector_42 |  -.3506944    .093503    -3.75   0.000    -.5340629   -.1673259
 _Isector_43 |          0  (omitted)
 _Isector_44 |   -.584971   .1909343    -3.06   0.002    -.9594117   -.2105304
 _Isector_45 |  -.1976965   .2162868    -0.91   0.361    -.6218559    .2264629
 _Isector_46 |  -.4447135   .1039628    -4.28   0.000    -.6485947   -.2408323
   _Ieduc_32 |  -.1511236   .0790076    -1.91   0.056    -.3060652     .003818
   _Ieduc_33 |  -.2528749      .0949    -2.66   0.008     -.438983   -.0667668
   _Ieduc_35 |  -.2388451   .0629304    -3.80   0.000    -.3622578   -.1154324
   _Ieduc_36 |  -.0322704   .3493521    -0.09   0.926    -.7173836    .6528429
   _Ieduc_37 |  -.1604698   .3469795    -0.46   0.644    -.8409303    .5199907
   _Ieduc_38 |  -.9808812   .3362569    -2.92   0.004    -1.640314   -.3214489
   _Ieduc_53 |   .1977124   .1507346     1.31   0.190    -.0978926    .4933175
   _Ieduc_54 |   .2632399    .061172     4.30   0.000     .1432756    .3832041
   _Ieduc_55 |  -.0912873   .0575094    -1.59   0.113    -.2040689    .0214942
   _Ieduc_56 |   .7918561   .0707215    11.20   0.000     .6531645    .9305478
   _Ieduc_57 |    .010154   .1669706     0.06   0.952    -.3172916    .3375997
   _Ieduc_63 |   .0689018   .1725766     0.40   0.690    -.2695378    .4073413
   _Ieduc_64 |   .2074439    .163516     1.27   0.205    -.1132268    .5281147
   _Ieduc_65 |   .1427501    .055404     2.58   0.010     .0340975    .2514027
   _Ieduc_66 |  -.2894012   .0679314    -4.26   0.000    -.4226212   -.1561812
   _Ieduc_72 |  -.0893321   .0962035    -0.93   0.353    -.2779966    .0993323
   _Ieduc_73 |   .3396915   .1189331     2.86   0.004     .1064521    .5729308
   _Ieduc_74 |   .1734868   .0582839     2.98   0.003     .0591864    .2877873
   _Ieduc_75 |   .3310509   .0545696     6.07   0.000     .2240345    .4380673
   _Ieduc_76 |   .4000604   .0802314     4.99   0.000     .2427188    .5574019
   _Ieduc_77 |   .3895303   .0822644     4.74   0.000     .2282019    .5508587
   _Ieduc_83 |   .2542079   .0611882     4.15   0.000     .1342118    .3742039
   _Ieduc_84 |   .3515714   .0643189     5.47   0.000     .2254357    .4777071
   _Ieduc_85 |   .4576492   .0611064     7.49   0.000     .3378136    .5774847
   _Ieduc_86 |   .4887337   .1005444     4.86   0.000     .2915563     .685911
   _Ieduc_87 |   .3635989   .1260193     2.89   0.004     .1164628     .610735
   _Ieduc_99 |  -.1951287   .0711703    -2.74   0.006    -.3347006   -.0555568
   _Inuts2_2 |  -.0770049   .0202415    -3.80   0.000    -.1167005   -.0373094
   _Inuts2_3 |  -.1149691   .0362024    -3.18   0.002    -.1859656   -.0439727
   _Inuts2_4 |  -.0664548   .0211619    -3.14   0.002    -.1079553   -.0249542
   _Inuts2_5 |   -.098765    .031108    -3.17   0.002    -.1597708   -.0377592
   _Inuts2_6 |    .438322   .0850699     5.15   0.000     .2714918    .6051523
        pats |    .033874   .0080623     4.20   0.000      .018063     .049685
     lagpats |   .0137909   .0092106     1.50   0.134    -.0042719    .0318538
     lagpat2 |   .0045004   .0089869     0.50   0.617    -.0131238    .0221245
       _cons |     7.6854   .2820653    27.25   0.000     7.132243    8.238558
------------------------------------------------------------------------------

. xi: reg logwage $expl_4, cluster(id);
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_43 omitted because of collinearity

Linear regression                                      Number of obs =   10572
                                                       F( 81,  2053) =       .
                                                       Prob > F      =       .
                                                       R-squared     =  0.2571
                                                       Root MSE      =  .47446

                                  (Std. Err. adjusted for 2054 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .1103348   .0113648     9.71   0.000     .0880471    .1326225
        age2 |  -.0011252   .0001357    -8.29   0.000    -.0013914   -.0008591
      tenure |   .0064661   .0014842     4.36   0.000     .0035554    .0093768
      female |   -.232493   .0256776    -9.05   0.000    -.2828499   -.1821361
      months |   .0283709   .0118114     2.40   0.016     .0052074    .0515345
         emp |   .0006146    .000348     1.77   0.078    -.0000679     .001297
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |  -.1725976   .0176613    -9.77   0.000    -.2072335   -.1379616
_Ivuosi_1995 |  -.1348544   .0179954    -7.49   0.000    -.1701455   -.0995632
_Ivuosi_1996 |  -.1192712   .0187229    -6.37   0.000     -.155989   -.0825534
_Ivuosi_1997 |  -.0863305   .0166744    -5.18   0.000    -.1190309   -.0536301
_Ivuosi_1998 |  -.0206013   .0160784    -1.28   0.200    -.0521329    .0109304
_Ivuosi_1999 |          0  (omitted)
  _Isector_2 |  -.0654328   .1330863    -0.49   0.623    -.3264311    .1955655
  _Isector_3 |          0  (omitted)
  _Isector_4 |  -.5877042   .1290335    -4.55   0.000    -.8407545    -.334654
  _Isector_5 |   -.354869   .0797302    -4.45   0.000    -.5112295   -.1985085
  _Isector_6 |          0  (omitted)
  _Isector_7 |  -.2284554   .1309598    -1.74   0.081    -.4852834    .0283726
  _Isector_8 |  -.2071596   .3570767    -0.58   0.562    -.9074299    .4931107
  _Isector_9 |  -.3275988   .1510327    -2.17   0.030    -.6237922   -.0314055
 _Isector_10 |  -.2004492   .1066754    -1.88   0.060    -.4096525     .008754
 _Isector_11 |  -.7598296   .1172777    -6.48   0.000    -.9898252    -.529834
 _Isector_12 |  -.3958516   .0956833    -4.14   0.000     -.583498   -.2082053
 _Isector_13 |  -.3758688   .0912788    -4.12   0.000    -.5548775     -.19686
 _Isector_14 |  -.2808112   .1199469    -2.34   0.019    -.5160415    -.045581
 _Isector_15 |  -.1798558   .1164508    -1.54   0.123    -.4082299    .0485183
 _Isector_16 |  -.3640248    .101448    -3.59   0.000    -.5629764   -.1650731
 _Isector_17 |  -.3901923   .0956881    -4.08   0.000    -.5778482   -.2025363
 _Isector_18 |   -.340942   .0911606    -3.74   0.000    -.5197189   -.1621652
 _Isector_19 |  -.3272052   .0997108    -3.28   0.001    -.5227501   -.1316603
 _Isector_20 |  -.4201348   .0977559    -4.30   0.000    -.6118458   -.2284238
 _Isector_21 |  -.2244983   .0956706    -2.35   0.019    -.4121198   -.0368768
 _Isector_22 |  -.3418506    .091924    -3.72   0.000    -.5221245   -.1615767
 _Isector_23 |  -.4430003   .1321953    -3.35   0.001    -.7022512   -.1837494
 _Isector_24 |  -.2593015   .1041642    -2.49   0.013    -.4635801   -.0550229
 _Isector_25 |  -.4115863   .1244242    -3.31   0.001     -.655597   -.1675755
 _Isector_26 |  -.5221017   .1099854    -4.75   0.000    -.7377963    -.306407
 _Isector_27 |  -.3366231   .1139525    -2.95   0.003    -.5600977   -.1131484
 _Isector_28 |  -.4547616   .1080229    -4.21   0.000    -.6666075   -.2429157
 _Isector_29 |    -.40095   .1231198    -3.26   0.001    -.6424028   -.1594972
 _Isector_30 |   -.565363   .1279449    -4.42   0.000    -.8162783   -.3144476
 _Isector_31 |   .2641897   .4537609     0.58   0.560      -.62569    1.154069
 _Isector_32 |  -.3067132   .2058689    -1.49   0.136    -.7104468    .0970205
 _Isector_33 |  -.5017936   .1246571    -4.03   0.000    -.7462612    -.257326
 _Isector_34 |  -.4011073   .2075768    -1.93   0.053    -.8081904    .0059758
 _Isector_35 |  -.3248145   .1171953    -2.77   0.006    -.5546486   -.0949803
 _Isector_36 |  -.4330047   .0921134    -4.70   0.000    -.6136501   -.2523593
 _Isector_37 |  -.5472921   .1711481    -3.20   0.001    -.8829341     -.21165
 _Isector_38 |  -.5117692   .1303984    -3.92   0.000    -.7674962   -.2560422
 _Isector_39 |   .2488801   .1825806     1.36   0.173    -.1091823    .6069426
 _Isector_40 |  -.2464864   .1217211    -2.03   0.043    -.4851962   -.0077766
 _Isector_41 |  -.4067459   .1033645    -3.94   0.000    -.6094561   -.2040358
 _Isector_42 |  -.3191688   .0936857    -3.41   0.001    -.5028977   -.1354399
 _Isector_43 |          0  (omitted)
 _Isector_44 |  -.5508833   .1927004    -2.86   0.004     -.928792   -.1729746
 _Isector_45 |  -.2022781   .2056524    -0.98   0.325    -.6055872    .2010311
 _Isector_46 |  -.4119401    .104516    -3.94   0.000    -.6169085   -.2069718
   _Ieduc_32 |  -.1672761   .0806779    -2.07   0.038    -.3254952   -.0090571
   _Ieduc_33 |  -.2937065   .0907212    -3.24   0.001    -.4716216   -.1157913
   _Ieduc_35 |  -.2600183   .0622697    -4.18   0.000    -.3821368   -.1378999
   _Ieduc_36 |  -.1298102   .3496433    -0.37   0.710    -.8155028    .5558823
   _Ieduc_37 |   -.160447   .3569968    -0.45   0.653    -.8605607    .5396667
   _Ieduc_38 |  -1.051681   .3376061    -3.12   0.002    -1.713767   -.3895952
   _Ieduc_53 |   .2142059   .1516765     1.41   0.158      -.08325    .5116618
   _Ieduc_54 |   .2864802   .0594464     4.82   0.000     .1698987    .4030617
   _Ieduc_55 |  -.1097812   .0564945    -1.94   0.052    -.2205737    .0010113
   _Ieduc_56 |   .7689849   .0702079    10.95   0.000     .6312988    .9066711
   _Ieduc_57 |   -.036734   .1734605    -0.21   0.832    -.3769109    .3034429
   _Ieduc_63 |   .0536139   .1790205     0.30   0.765    -.2974668    .4046946
   _Ieduc_64 |   .1896963   .1985849     0.96   0.340    -.1997526    .5791452
   _Ieduc_65 |   .1234077   .0538233     2.29   0.022     .0178537    .2289617
   _Ieduc_66 |  -.3032997   .0694022    -4.37   0.000    -.4394059   -.1671936
   _Ieduc_72 |  -.1365085   .1050776    -1.30   0.194    -.3425784    .0695614
   _Ieduc_73 |   .3209702   .1223532     2.62   0.009     .0810209    .5609194
   _Ieduc_74 |   .1513135   .0576309     2.63   0.009     .0382923    .2643346
   _Ieduc_75 |   .3123892   .0525029     5.95   0.000     .2094246    .4153538
   _Ieduc_76 |   .4002335   .0786089     5.09   0.000     .2460719     .554395
   _Ieduc_77 |   .3708739   .0846593     4.38   0.000     .2048468    .5369011
   _Ieduc_83 |   .1675029   .0602527     2.78   0.005       .04934    .2856657
   _Ieduc_84 |   .3346744   .0654049     5.12   0.000     .2064076    .4629413
   _Ieduc_85 |   .4507033   .0600933     7.50   0.000     .3328532    .5685534
   _Ieduc_86 |   .4957345   .0985639     5.03   0.000     .3024388    .6890301
   _Ieduc_87 |   .3381174   .1331982     2.54   0.011     .0768997    .5993351
   _Ieduc_99 |  -.2213983   .0721131    -3.07   0.002    -.3628207   -.0799759
   _Inuts2_2 |  -.0826406   .0214383    -3.85   0.000    -.1246837   -.0405975
   _Inuts2_3 |  -.1119174   .0386345    -2.90   0.004    -.1876843   -.0361505
   _Inuts2_4 |  -.0698561   .0220322    -3.17   0.002    -.1130639   -.0266484
   _Inuts2_5 |  -.1052696    .033623    -3.13   0.002    -.1712084   -.0393308
   _Inuts2_6 |   .4317173   .0864228     5.00   0.000     .2622318    .6012028
        pats |    .032725   .0086796     3.77   0.000     .0157033    .0497466
     lagpats |    .010849   .0102228     1.06   0.289    -.0091991    .0308972
     lagpat2 |   .0036327   .0087574     0.41   0.678    -.0135415    .0208069
     lagpat3 |   .0065272   .0141899     0.46   0.646    -.0213009    .0343552
       _cons |   7.926336   .2927663    27.07   0.000     7.352186    8.500486
------------------------------------------------------------------------------

. xi: reg logwage $expl_5, cluster(id);
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity

Linear regression                                      Number of obs =    8612
                                                       F( 80,  1967) =       .
                                                       Prob > F      =       .
                                                       R-squared     =  0.2406
                                                       Root MSE      =  .48886

                                  (Std. Err. adjusted for 1968 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .1080195   .0133856     8.07   0.000      .081768     .134271
        age2 |  -.0010939   .0001576    -6.94   0.000     -.001403   -.0007847
      tenure |   .0063064   .0015339     4.11   0.000      .003298    .0093147
      female |  -.2309285   .0276074    -8.36   0.000    -.2850712   -.1767857
      months |   .0306579   .0094188     3.25   0.001      .012186    .0491298
         emp |   .0004673   .0003827     1.22   0.222    -.0002832    .0012179
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |          0  (omitted)
_Ivuosi_1995 |          0  (omitted)
_Ivuosi_1996 |   .0186358   .0086936     2.14   0.032     .0015863    .0356854
_Ivuosi_1997 |   .0526306   .0101011     5.21   0.000     .0328207    .0724404
_Ivuosi_1998 |   .1146128    .011362    10.09   0.000     .0923301    .1368956
_Ivuosi_1999 |   .1360042   .0184106     7.39   0.000     .0998979    .1721104
  _Isector_2 |  -.0610548   .1286528    -0.47   0.635    -.3133648    .1912553
  _Isector_3 |          0  (omitted)
  _Isector_4 |  -.5593541   .1278365    -4.38   0.000    -.8100633    -.308645
  _Isector_5 |  -.3487067   .0803682    -4.34   0.000    -.5063225   -.1910908
  _Isector_6 |          0  (omitted)
  _Isector_7 |  -.2404142   .1331317    -1.81   0.071    -.5015082    .0206798
  _Isector_8 |  -.2098296   .3650669    -0.57   0.566     -.925788    .5061289
  _Isector_9 |   -.352214   .1626703    -2.17   0.030    -.6712383   -.0331897
 _Isector_10 |  -.1799276   .1095765    -1.64   0.101    -.3948258    .0349706
 _Isector_11 |  -.7846167   .1124039    -6.98   0.000     -1.00506   -.5641734
 _Isector_12 |  -.3782296   .0963751    -3.92   0.000    -.5672377   -.1892215
 _Isector_13 |  -.3690703   .0921461    -4.01   0.000    -.5497845    -.188356
 _Isector_14 |  -.2922429   .1194135    -2.45   0.014    -.5264332   -.0580525
 _Isector_15 |  -.1820983   .1201843    -1.52   0.130    -.4178002    .0536035
 _Isector_16 |   -.340022   .1024892    -3.32   0.001    -.5410208   -.1390231
 _Isector_17 |  -.3734453   .0967265    -3.86   0.000    -.5631426   -.1837481
 _Isector_18 |   -.329075   .0919764    -3.58   0.000    -.5094564   -.1486935
 _Isector_19 |  -.3148595   .1021841    -3.08   0.002    -.5152599   -.1144591
 _Isector_20 |  -.4080092   .0992978    -4.11   0.000    -.6027491   -.2132694
 _Isector_21 |  -.1778113   .0977821    -1.82   0.069    -.3695787    .0139562
 _Isector_22 |  -.3420966   .0924334    -3.70   0.000    -.5233743   -.1608189
 _Isector_23 |  -.4425986   .1454805    -3.04   0.002    -.7279107   -.1572864
 _Isector_24 |   -.269244   .1068395    -2.52   0.012    -.4787746   -.0597135
 _Isector_25 |  -.4053517   .1251384    -3.24   0.001    -.6507694    -.159934
 _Isector_26 |  -.5198405   .1112377    -4.67   0.000    -.7379966   -.3016843
 _Isector_27 |  -.2977883   .1130186    -2.63   0.008     -.519437   -.0761396
 _Isector_28 |  -.4342493   .1111507    -3.91   0.000    -.6522348   -.2162638
 _Isector_29 |  -.3829214   .1250698    -3.06   0.002    -.6282047   -.1376381
 _Isector_30 |  -.5722953   .1286492    -4.45   0.000    -.8245983   -.3199922
 _Isector_31 |    .785774   .2452723     3.20   0.001     .3047532    1.266795
 _Isector_32 |  -.3139491   .1525133    -2.06   0.040    -.6130536   -.0148445
 _Isector_33 |  -.4807597   .1318072    -3.65   0.000    -.7392562   -.2222632
 _Isector_34 |  -.4283791   .2407597    -1.78   0.075      -.90055    .0437918
 _Isector_35 |  -.3045153   .1221194    -2.49   0.013    -.5440123   -.0650183
 _Isector_36 |  -.4107388   .0931215    -4.41   0.000    -.5933659   -.2281117
 _Isector_37 |  -.5389953   .1762624    -3.06   0.002    -.8846761   -.1933146
 _Isector_38 |  -.4861347   .1422068    -3.42   0.001    -.7650266   -.2072428
 _Isector_39 |   .2685001   .1793905     1.50   0.135    -.0833153    .6203155
 _Isector_40 |  -.2280112   .1261468    -1.81   0.071    -.4754067    .0193843
 _Isector_41 |   -.397153   .1045722    -3.80   0.000    -.6022369   -.1920691
 _Isector_42 |  -.3115661    .094963    -3.28   0.001    -.4978048   -.1253275
 _Isector_43 |          0  (omitted)
 _Isector_44 |  -.5446615   .2060322    -2.64   0.008    -.9487258   -.1405971
 _Isector_45 |  -.2110241    .196509    -1.07   0.283    -.5964119    .1743637
 _Isector_46 |  -.4116119   .1096054    -3.76   0.000    -.6265669    -.196657
   _Ieduc_32 |  -.1757757   .0934027    -1.88   0.060    -.3589544     .007403
   _Ieduc_33 |  -.3210337   .0959203    -3.35   0.001    -.5091498   -.1329177
   _Ieduc_35 |  -.2618053   .0669493    -3.91   0.000    -.3931043   -.1305062
   _Ieduc_36 |  -.1410703   .3548303    -0.40   0.691    -.8369531    .5548125
   _Ieduc_37 |  -.1341427    .396275    -0.34   0.735    -.9113055    .6430202
   _Ieduc_38 |  -1.330049   .2327544    -5.71   0.000     -1.78652   -.8735782
   _Ieduc_53 |   .2233084   .1553074     1.44   0.151     -.081276    .5278927
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |  -.1198274   .0617092    -1.94   0.052    -.2408497     .001195
   _Ieduc_56 |   .7411495   .0777564     9.53   0.000      .588656    .8936429
   _Ieduc_57 |  -.0557604   .1884034    -0.30   0.767    -.4252516    .3137307
   _Ieduc_63 |    .009831   .1989365     0.05   0.961    -.3803174    .3999794
   _Ieduc_64 |   .1534228     .21883     0.70   0.483    -.2757403    .5825859
   _Ieduc_65 |   .1182497   .0595219     1.99   0.047     .0015171    .2349822
   _Ieduc_66 |   -.297933   .0758832    -3.93   0.000    -.4467529   -.1491131
   _Ieduc_72 |  -.1688937   .1216687    -1.39   0.165    -.4075067    .0697193
   _Ieduc_73 |   .3291418   .1391105     2.37   0.018     .0563223    .6019612
   _Ieduc_74 |   .1457357   .0636812     2.29   0.022      .020846    .2706255
   _Ieduc_75 |   .3119341   .0582201     5.36   0.000     .1977547    .4261136
   _Ieduc_76 |   .4093683   .0885244     4.62   0.000     .2357568    .5829798
   _Ieduc_77 |   .3685471   .0938423     3.93   0.000     .1845063    .5525879
   _Ieduc_83 |   .1367236   .0716166     1.91   0.056    -.0037288     .277176
   _Ieduc_84 |   .3342991   .0712485     4.69   0.000     .1945686    .4740296
   _Ieduc_85 |   .4523037   .0658856     6.86   0.000     .3230907    .5815167
   _Ieduc_86 |   .5057488   .1015302     4.98   0.000     .3066307    .7048669
   _Ieduc_87 |   .3550621   .1459857     2.43   0.015     .0687591     .641365
   _Ieduc_99 |  -.2235078   .0789211    -2.83   0.005    -.3782856   -.0687301
   _Inuts2_2 |  -.0811878    .022903    -3.54   0.000    -.1261045   -.0362711
   _Inuts2_3 |  -.1151309   .0396983    -2.90   0.004     -.192986   -.0372759
   _Inuts2_4 |  -.0670638   .0232459    -2.88   0.004    -.1126529   -.0214746
   _Inuts2_5 |  -.1228051   .0368194    -3.34   0.001    -.1950141    -.050596
   _Inuts2_6 |   .4527931   .0856408     5.29   0.000     .2848369    .6207493
        pats |   .0382573   .0097358     3.93   0.000     .0191637    .0573509
     lagpats |   .0039755    .012122     0.33   0.743    -.0197978    .0277488
     lagpat2 |  -.0010583   .0101932    -0.10   0.917    -.0210489    .0189323
     lagpat3 |   .0035974   .0150264     0.24   0.811    -.0258719    .0330667
     lagpat4 |    .028424   .0107507     2.64   0.008     .0073399     .049508
       _cons |   7.793012   .3216212    24.23   0.000     7.162258    8.423766
------------------------------------------------------------------------------

. xi: reg logwage $expl_6, cluster(id);
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity

Linear regression                                      Number of obs =    6746
                                                       F( 80,  1886) =       .
                                                       Prob > F      =       .
                                                       R-squared     =  0.2310
                                                       Root MSE      =  .50488

                                  (Std. Err. adjusted for 1887 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |    .110496   .0160262     6.89   0.000      .079065     .141927
        age2 |  -.0011179   .0001857    -6.02   0.000    -.0014821   -.0007537
      tenure |   .0060249   .0015965     3.77   0.000     .0028938     .009156
      female |  -.2220616   .0299898    -7.40   0.000    -.2808784   -.1632449
      months |   .0308811   .0101979     3.03   0.002     .0108807    .0508815
         emp |   .0005173    .000406     1.27   0.203    -.0002791    .0013136
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |          0  (omitted)
_Ivuosi_1995 |          0  (omitted)
_Ivuosi_1996 |  -.1122958   .0191444    -5.87   0.000    -.1498423   -.0747494
_Ivuosi_1997 |  -.0816355   .0173147    -4.71   0.000    -.1155934   -.0476775
_Ivuosi_1998 |  -.0200014   .0166077    -1.20   0.229    -.0525729    .0125701
_Ivuosi_1999 |          0  (omitted)
  _Isector_2 |  -.0333749   .1117258    -0.30   0.765     -.252494    .1857442
  _Isector_3 |          0  (omitted)
  _Isector_4 |  -.5287974   .1321702    -4.00   0.000    -.7880126   -.2695822
  _Isector_5 |  -.3535538   .0735567    -4.81   0.000    -.4978149   -.2092926
  _Isector_6 |          0  (omitted)
  _Isector_7 |  -.2063074   .1299285    -1.59   0.112    -.4611261    .0485112
  _Isector_8 |  -.1813063   .3732147    -0.49   0.627    -.9132634    .5506507
  _Isector_9 |  -.3742315   .1604221    -2.33   0.020    -.6888549   -.0596081
 _Isector_10 |  -.1498958   .1059545    -1.41   0.157    -.3576961    .0579045
 _Isector_11 |   -.802829   .1072109    -7.49   0.000    -1.013093   -.5925647
 _Isector_12 |   -.370485   .0944413    -3.92   0.000    -.5557054   -.1852647
 _Isector_13 |  -.3446607    .088801    -3.88   0.000    -.5188193   -.1705021
 _Isector_14 |  -.2779275   .1140259    -2.44   0.015    -.5015578   -.0542973
 _Isector_15 |  -.1488737   .1196116    -1.24   0.213    -.3834587    .0857113
 _Isector_16 |  -.3153562   .1003213    -3.14   0.002    -.5121085   -.1186038
 _Isector_17 |  -.3326806   .0933794    -3.56   0.000    -.5158184   -.1495428
 _Isector_18 |  -.3087858   .0879368    -3.51   0.000    -.4812495   -.1363221
 _Isector_19 |  -.2711575   .1031682    -2.63   0.009    -.4734933   -.0688216
 _Isector_20 |  -.3649989   .0936197    -3.90   0.000     -.548608   -.1813898
 _Isector_21 |  -.1180724   .0958355    -1.23   0.218    -.3060272    .0698824
 _Isector_22 |  -.3219769   .0885555    -3.64   0.000    -.4956539   -.1482999
 _Isector_23 |  -.3582262   .1257798    -2.85   0.004    -.6049083    -.111544
 _Isector_24 |  -.2616243   .1068522    -2.45   0.014    -.4711853   -.0520634
 _Isector_25 |  -.3905943   .1246987    -3.13   0.002    -.6351562   -.1460324
 _Isector_26 |  -.5009278   .1104869    -4.53   0.000    -.7176172   -.2842385
 _Isector_27 |  -.2532802     .11112    -2.28   0.023    -.4712113    -.035349
 _Isector_28 |  -.4023657   .1124854    -3.58   0.000    -.6229745   -.1817568
 _Isector_29 |  -.3510987   .1277253    -2.75   0.006    -.6015965   -.1006008
 _Isector_30 |  -.5911751   .1334327    -4.43   0.000    -.8528663   -.3294839
 _Isector_31 |   .9094169   .3231693     2.81   0.005       .27561    1.543224
 _Isector_32 |   -.409731   .1063175    -3.85   0.000    -.6182433   -.2012187
 _Isector_33 |  -.4389725   .1563104    -2.81   0.005     -.745532    -.132413
 _Isector_34 |  -.4694976   .2961196    -1.59   0.113    -1.050254    .1112588
 _Isector_35 |  -.2523643   .1201673    -2.10   0.036    -.4880391   -.0166895
 _Isector_36 |  -.3752386   .0895711    -4.19   0.000    -.5509074   -.1995697
 _Isector_37 |  -.5328817   .1838975    -2.90   0.004    -.8935458   -.1722177
 _Isector_38 |  -.4520562   .1537898    -2.94   0.003    -.7536722   -.1504402
 _Isector_39 |   .3028782   .1744076     1.74   0.083    -.0391739    .6449303
 _Isector_40 |  -.2277697   .1396743    -1.63   0.103    -.5017022    .0461628
 _Isector_41 |  -.3667758   .1026582    -3.57   0.000    -.5681115   -.1654402
 _Isector_42 |  -.2865422   .0926216    -3.09   0.002    -.4681939   -.1048906
 _Isector_43 |          0  (omitted)
 _Isector_44 |  -.5013743   .2376951    -2.11   0.035    -.9675473   -.0352014
 _Isector_45 |    -.21286   .1907638    -1.12   0.265    -.5869903    .1612703
 _Isector_46 |  -.3924259    .115715    -3.39   0.001    -.6193688    -.165483
   _Ieduc_32 |  -.1622536   .1092142    -1.49   0.138    -.3764469    .0519397
   _Ieduc_33 |  -.2997928   .1217859    -2.46   0.014    -.5386421   -.0609435
   _Ieduc_35 |  -.2483313   .0730583    -3.40   0.001     -.391615   -.1050476
   _Ieduc_36 |  -.1158689   .3595359    -0.32   0.747    -.8209989    .5892611
   _Ieduc_37 |  -.1199048   .3926545    -0.31   0.760    -.8899878    .6501781
   _Ieduc_38 |  -1.425236   .3152963    -4.52   0.000    -2.043602   -.8068693
   _Ieduc_53 |   .2714872    .167462     1.62   0.105    -.0569431    .5999176
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |  -.1025587   .0678921    -1.51   0.131    -.2357102    .0305928
   _Ieduc_56 |    .764533   .0865323     8.84   0.000     .5948238    .9342422
   _Ieduc_57 |   -.058818   .2163966    -0.27   0.786      -.48322    .3655839
   _Ieduc_63 |  -.0154466   .2283221    -0.07   0.946     -.463237    .4323438
   _Ieduc_64 |   .1892446   .2088959     0.91   0.365    -.2204466    .5989359
   _Ieduc_65 |   .1365673   .0663543     2.06   0.040     .0064318    .2667029
   _Ieduc_66 |  -.3139247   .0854583    -3.67   0.000    -.4815275   -.1463218
   _Ieduc_72 |  -.1621553   .1489669    -1.09   0.276    -.4543126    .1300021
   _Ieduc_73 |   .3306249   .1512105     2.19   0.029     .0340674    .6271824
   _Ieduc_74 |   .1506584   .0715806     2.10   0.035     .0102729    .2910439
   _Ieduc_75 |   .3363623    .065297     5.15   0.000     .2083004    .4644243
   _Ieduc_76 |   .4616984   .1002994     4.60   0.000     .2649889     .658408
   _Ieduc_77 |   .3957493   .1097312     3.61   0.000     .1805421    .6109565
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |   .3496711   .0788555     4.43   0.000      .195018    .5043242
   _Ieduc_85 |   .4805375   .0731638     6.57   0.000      .337047    .6240281
   _Ieduc_86 |   .5501144   .1019604     5.40   0.000     .3501473    .7500815
   _Ieduc_87 |   .3630767   .1751805     2.07   0.038     .0195088    .7066447
   _Ieduc_99 |  -.2088473   .0876548    -2.38   0.017    -.3807579   -.0369367
   _Inuts2_2 |  -.0802725   .0247796    -3.24   0.001    -.1288709   -.0316741
   _Inuts2_3 |  -.1213692   .0423326    -2.87   0.004    -.2043928   -.0383455
   _Inuts2_4 |  -.0689903   .0250364    -2.76   0.006    -.1180924   -.0198883
   _Inuts2_5 |  -.1217908   .0392019    -3.11   0.002    -.1986745   -.0449071
   _Inuts2_6 |   .4671611   .0834852     5.60   0.000      .303428    .6308943
        pats |   .0419736   .0109533     3.83   0.000     .0204918    .0634554
     lagpats |   .0035669   .0147824     0.24   0.809    -.0254247    .0325585
     lagpat2 |  -.0036512     .01139    -0.32   0.749    -.0259896    .0186872
     lagpat3 |   .0001004   .0169583     0.01   0.995    -.0331586    .0333594
     lagpat4 |    .032365    .012169     2.66   0.008     .0084989    .0562311
     lagpat5 |   .0159759   .0146025     1.09   0.274    -.0126628    .0446146
       _cons |   7.813026   .3761858    20.77   0.000     7.075242     8.55081
------------------------------------------------------------------------------

. xi: reg logwage $expl_7, cluster(id);
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Ivuosi_1996 omitted because of collinearity
note: _Ivuosi_1997 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_32 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_66 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity

Linear regression                                      Number of obs =    4938
                                                       F( 78,  1788) =       .
                                                       Prob > F      =       .
                                                       R-squared     =  0.2293
                                                       Root MSE      =  .52767

                                  (Std. Err. adjusted for 1789 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .1134242     .02059     5.51   0.000     .0730413    .1538072
        age2 |  -.0011513   .0002356    -4.89   0.000    -.0016133   -.0006893
      tenure |   .0063442   .0017105     3.71   0.000     .0029894    .0096989
      female |  -.2248495    .034829    -6.46   0.000    -.2931594   -.1565397
      months |   .0177073   .0065273     2.71   0.007     .0049052    .0305093
         emp |   .0007318   .0004629     1.58   0.114    -.0001762    .0016397
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |          0  (omitted)
_Ivuosi_1995 |          0  (omitted)
_Ivuosi_1996 |          0  (omitted)
_Ivuosi_1997 |          0  (omitted)
_Ivuosi_1998 |   .0605173   .0086857     6.97   0.000      .043482    .0775525
_Ivuosi_1999 |   .0813797   .0171929     4.73   0.000     .0476595    .1150999
  _Isector_2 |   .0163135   .0880717     0.19   0.853    -.1564208    .1890478
  _Isector_3 |          0  (omitted)
  _Isector_4 |   -.447247   .1248571    -3.58   0.000    -.6921283   -.2023658
  _Isector_5 |  -.3673715   .0704989    -5.21   0.000    -.5056403   -.2291027
  _Isector_6 |          0  (omitted)
  _Isector_7 |  -.1801838   .1303596    -1.38   0.167     -.435857    .0754894
  _Isector_8 |  -.1533369   .3807035    -0.40   0.687    -.9000076    .5933337
  _Isector_9 |  -.3871875   .1731333    -2.24   0.025    -.7267524   -.0476225
 _Isector_10 |  -.1392888   .1045284    -1.33   0.183    -.3442994    .0657219
 _Isector_11 |  -.7939841   .1081562    -7.34   0.000     -1.00611   -.5818584
 _Isector_12 |   -.392444   .0975422    -4.02   0.000    -.5837527   -.2011353
 _Isector_13 |  -.3332902   .0872698    -3.82   0.000    -.5044517   -.1621286
 _Isector_14 |    -.25426   .1101296    -2.31   0.021    -.4702562   -.0382637
 _Isector_15 |  -.1265711   .1232493    -1.03   0.305     -.368299    .1151568
 _Isector_16 |  -.3082132   .1005154    -3.07   0.002    -.5053531   -.1110732
 _Isector_17 |  -.3112825   .0933423    -3.33   0.001    -.4943539    -.128211
 _Isector_18 |  -.3016943    .086777    -3.48   0.001    -.4718893   -.1314992
 _Isector_19 |  -.2204555   .1062362    -2.08   0.038    -.4288156   -.0120954
 _Isector_20 |  -.3303324   .0939442    -3.52   0.000    -.5145842   -.1460805
 _Isector_21 |  -.0481298   .0977354    -0.49   0.622    -.2398174    .1435577
 _Isector_22 |  -.2971171   .0869094    -3.42   0.001    -.4675717   -.1266625
 _Isector_23 |  -.3435811   .1355574    -2.53   0.011    -.6094487   -.0777134
 _Isector_24 |   -.264787   .1138818    -2.33   0.020    -.4881424   -.0414315
 _Isector_25 |  -.3714293   .1295257    -2.87   0.004    -.6254669   -.1173916
 _Isector_26 |  -.4420811   .1026818    -4.31   0.000    -.6434699   -.2406922
 _Isector_27 |  -.2841889   .1088865    -2.61   0.009    -.4977471   -.0706307
 _Isector_28 |  -.3774552   .1130177    -3.34   0.001    -.5991158   -.1557945
 _Isector_29 |  -.2734051    .117257    -2.33   0.020    -.5033803   -.0434299
 _Isector_30 |  -.5884923   .1393781    -4.22   0.000    -.8618534   -.3151312
 _Isector_31 |   .8710401     .41312     2.11   0.035     .0607912    1.681289
 _Isector_32 |          0  (omitted)
 _Isector_33 |  -.3224373   .1420213    -2.27   0.023    -.6009825   -.0438921
 _Isector_34 |  -.1812984   .1848185    -0.98   0.327    -.5437814    .1811845
 _Isector_35 |  -.2266981   .1278907    -1.77   0.076     -.477529    .0241327
 _Isector_36 |  -.3393995   .0903588    -3.76   0.000    -.5166194   -.1621795
 _Isector_37 |  -.5229595   .1937722    -2.70   0.007    -.9030034   -.1429156
 _Isector_38 |   -.431646   .1652133    -2.61   0.009    -.7556774   -.1076145
 _Isector_39 |   .3238288   .1745635     1.86   0.064    -.0185411    .6661987
 _Isector_40 |  -.1715098   .1602295    -1.07   0.285    -.4857667     .142747
 _Isector_41 |  -.3440053   .1045388    -3.29   0.001    -.5490363   -.1389743
 _Isector_42 |  -.2457861   .0954277    -2.58   0.010    -.4329476   -.0586246
 _Isector_43 |          0  (omitted)
 _Isector_44 |   -.459742   .2790473    -1.65   0.100    -1.007035    .0875512
 _Isector_45 |  -.1769849   .1694232    -1.04   0.296    -.5092732    .1553035
 _Isector_46 |   -.335358   .1374667    -2.44   0.015    -.6049704   -.0657456
   _Ieduc_32 |  -.1908544   .1391954    -1.37   0.171    -.4638572    .0821485
   _Ieduc_33 |   -.405159   .1336274    -3.03   0.002    -.6672413   -.1430768
   _Ieduc_35 |  -.2361043   .0791485    -2.98   0.003    -.3913377    -.080871
   _Ieduc_36 |  -.1120899   .3789286    -0.30   0.767    -.8552793    .6310995
   _Ieduc_37 |  -.1326856   .4003246    -0.33   0.740    -.9178389    .6524676
   _Ieduc_38 |  -1.421543   .4079252    -3.48   0.001    -2.221603   -.6214829
   _Ieduc_53 |   .3221926   .1841399     1.75   0.080    -.0389594    .6833446
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |  -.0862187   .0739322    -1.17   0.244    -.2312212    .0587839
   _Ieduc_56 |   .7938135    .098927     8.02   0.000     .5997888    .9878382
   _Ieduc_57 |  -.0455004   .2522575    -0.18   0.857    -.5402509    .4492501
   _Ieduc_63 |   -.064015   .2753775    -0.23   0.816    -.6041105    .4760805
   _Ieduc_64 |   .2396938    .194809     1.23   0.219    -.1423834     .621771
   _Ieduc_65 |   .1543125   .0725314     2.13   0.034     .0120572    .2965678
   _Ieduc_66 |          0  (omitted)
   _Ieduc_72 |  -.1909141   .1852037    -1.03   0.303    -.5541526    .1723243
   _Ieduc_73 |   .3481574   .1779547     1.96   0.051    -.0008636    .6971784
   _Ieduc_74 |   .1568639   .0790688     1.98   0.047     .0017868    .3119409
   _Ieduc_75 |   .3627212   .0715958     5.07   0.000     .2223009    .5031415
   _Ieduc_76 |   .5221523   .1075557     4.85   0.000     .3112042    .7331005
   _Ieduc_77 |    .432998   .1274171     3.40   0.001     .1830959    .6829001
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |   .3746663   .0844532     4.44   0.000     .2090289    .5403036
   _Ieduc_85 |   .5166995   .0807578     6.40   0.000     .3583099    .6750891
   _Ieduc_86 |   .5978066   .1043527     5.73   0.000     .3931406    .8024726
   _Ieduc_87 |   .3175843   .2144767     1.48   0.139    -.1030669    .7382356
   _Ieduc_99 |   -.205283   .0932094    -2.20   0.028    -.3880939   -.0224721
   _Inuts2_2 |  -.0821161   .0277837    -2.96   0.003    -.1366081   -.0276241
   _Inuts2_3 |   -.129796   .0460896    -2.82   0.005    -.2201912   -.0394008
   _Inuts2_4 |   -.076637   .0276592    -2.77   0.006    -.1308847   -.0223893
   _Inuts2_5 |   -.127863   .0449605    -2.84   0.005    -.2160436   -.0396823
   _Inuts2_6 |   .4262904   .0814062     5.24   0.000     .2666292    .5859517
        pats |   .0494051   .0126395     3.91   0.000     .0246153    .0741949
     lagpats |   .0004994   .0166948     0.03   0.976     -.032244    .0332428
     lagpat2 |   -.003281   .0143313    -0.23   0.819     -.031389    .0248269
     lagpat3 |   .0049935   .0205712     0.24   0.808    -.0353526    .0453395
     lagpat4 |    .032754   .0144265     2.27   0.023     .0044594    .0610485
     lagpat5 |    .020255   .0148234     1.37   0.172    -.0088181     .049328
     lagpat6 |   .0125502   .0124828     1.01   0.315    -.0119322    .0370327
       _cons |   7.767947   .4456367    17.43   0.000     6.893924    8.641971
------------------------------------------------------------------------------

.  /* TABLE 3 */
> xi: reg logwage $expl_8, cluster(id);
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Ivuosi_1996 omitted because of collinearity
note: _Ivuosi_1997 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_31 omitted because of collinearity
note: _Isector_32 omitted because of collinearity
note: _Isector_33 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_66 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity

Linear regression                                      Number of obs =    3206
                                                       F( 77,  1690) =       .
                                                       Prob > F      =       .
                                                       R-squared     =  0.2136
                                                       Root MSE      =  .59212

                                  (Std. Err. adjusted for 1691 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .1318801   .0290632     4.54   0.000     .0748765    .1888838
        age2 |   -.001346   .0003271    -4.11   0.000    -.0019876   -.0007044
      tenure |   .0070429   .0019501     3.61   0.000     .0032181    .0108678
      female |  -.2161429   .0399093    -5.42   0.000    -.2944196   -.1378661
      months |   .0130964   .0067755     1.93   0.053    -.0001928    .0263856
         emp |   .0010712   .0006248     1.71   0.087    -.0001543    .0022968
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |          0  (omitted)
_Ivuosi_1995 |          0  (omitted)
_Ivuosi_1996 |          0  (omitted)
_Ivuosi_1997 |          0  (omitted)
_Ivuosi_1998 |    -.01839   .0167927    -1.10   0.274    -.0513267    .0145467
_Ivuosi_1999 |          0  (omitted)
  _Isector_2 |   .0114592   .0939302     0.12   0.903    -.1727724    .1956909
  _Isector_3 |          0  (omitted)
  _Isector_4 |  -.3155641    .128223    -2.46   0.014    -.5670567   -.0640714
  _Isector_5 |  -.3636422   .0923443    -3.94   0.000    -.5447635   -.1825209
  _Isector_6 |          0  (omitted)
  _Isector_7 |  -.1473033   .1439921    -1.02   0.306    -.4297249    .1351182
  _Isector_8 |  -.1157878   .4094431    -0.28   0.777    -.9188566    .6872811
  _Isector_9 |  -.4791196   .1830404    -2.62   0.009    -.8381293   -.1201099
 _Isector_10 |  -.1469463    .123801    -1.19   0.235    -.3897657    .0958732
 _Isector_11 |  -.7038361   .1300983    -5.41   0.000    -.9590067   -.4486655
 _Isector_12 |  -.4161433   .1210314    -3.44   0.001    -.6535305   -.1787561
 _Isector_13 |  -.3160672   .1018579    -3.10   0.002    -.5158481   -.1162862
 _Isector_14 |  -.2598523   .1200891    -2.16   0.031    -.4953914   -.0243133
 _Isector_15 |  -.1228477   .1423394    -0.86   0.388    -.4020278    .1563323
 _Isector_16 |  -.3122645   .1219152    -2.56   0.011    -.5513852   -.0731438
 _Isector_17 |  -.2899453    .111937    -2.59   0.010     -.509495   -.0703955
 _Isector_18 |  -.2991271   .1055598    -2.83   0.005    -.5061688   -.0920854
 _Isector_19 |  -.1595116   .1304066    -1.22   0.221    -.4152871    .0962639
 _Isector_20 |  -.3186018   .1142269    -2.79   0.005    -.5426429   -.0945607
 _Isector_21 |   .0137787   .1223167     0.11   0.910    -.2261295    .2536869
 _Isector_22 |  -.2870213   .1053682    -2.72   0.007    -.4936872   -.0803554
 _Isector_23 |  -.3009288   .1510833    -1.99   0.047    -.5972589   -.0045988
 _Isector_24 |  -.2938158   .1459054    -2.01   0.044    -.5799901   -.0076414
 _Isector_25 |  -.3423368   .1492231    -2.29   0.022    -.6350184   -.0496553
 _Isector_26 |  -.4350502   .1208419    -3.60   0.000    -.6720657   -.1980347
 _Isector_27 |  -.3058518   .1276392    -2.40   0.017    -.5561994   -.0555042
 _Isector_28 |  -.3673257   .1321791    -2.78   0.006    -.6265776   -.1080737
 _Isector_29 |  -.2071243   .1262462    -1.64   0.101    -.4547397    .0404911
 _Isector_30 |  -.5145486   .1897297    -2.71   0.007    -.8866784   -.1424188
 _Isector_31 |          0  (omitted)
 _Isector_32 |          0  (omitted)
 _Isector_33 |          0  (omitted)
 _Isector_34 |  -.2002148   .2033394    -0.98   0.325    -.5990383    .1986087
 _Isector_35 |  -.1889589   .1654146    -1.14   0.253     -.513398    .1354801
 _Isector_36 |  -.3258977   .1134718    -2.87   0.004    -.5484576   -.1033377
 _Isector_37 |  -.4620579   .2155417    -2.14   0.032    -.8848146   -.0393011
 _Isector_38 |  -.3842624   .1887696    -2.04   0.042    -.7545093   -.0140156
 _Isector_39 |    .319824   .1937021     1.65   0.099    -.0600972    .6997452
 _Isector_40 |  -.0842393    .190053    -0.44   0.658    -.4570033    .2885247
 _Isector_41 |   -.333666   .1218596    -2.74   0.006    -.5726776   -.0946545
 _Isector_42 |  -.1912289   .1180967    -1.62   0.106      -.42286    .0404022
 _Isector_43 |          0  (omitted)
 _Isector_44 |  -.4143807   .3443483    -1.20   0.229    -1.089775    .2610132
 _Isector_45 |  -.1481607   .1561696    -0.95   0.343    -.4544669    .1581455
 _Isector_46 |  -.2572431    .179448    -1.43   0.152    -.6092069    .0947206
   _Ieduc_32 |   -.268945   .1916552    -1.40   0.161    -.6448515    .1069615
   _Ieduc_33 |  -.5125545   .1465152    -3.50   0.000    -.7999249   -.2251842
   _Ieduc_35 |  -.2017038   .0995677    -2.03   0.043    -.3969927   -.0064149
   _Ieduc_36 |   .1846889   .3825783     0.48   0.629    -.5656882     .935066
   _Ieduc_37 |  -.1474946    .413042    -0.36   0.721    -.9576222     .662633
   _Ieduc_38 |  -1.396747   .5245962    -2.66   0.008    -2.425673   -.3678204
   _Ieduc_53 |   .3478838   .1967635     1.77   0.077    -.0380419    .7338095
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |   -.051084   .0954119    -0.54   0.592     -.238222    .1360539
   _Ieduc_56 |          0  (omitted)
   _Ieduc_57 |  -.0197375    .292293    -0.07   0.946    -.5930319    .5535569
   _Ieduc_63 |  -.1588041   .3663167    -0.43   0.665    -.8772863     .559678
   _Ieduc_64 |   .3411646   .1591661     2.14   0.032     .0289813    .6533479
   _Ieduc_65 |   .1887443   .0946042     2.00   0.046     .0031906     .374298
   _Ieduc_66 |          0  (omitted)
   _Ieduc_72 |  -.2206261   .2567538    -0.86   0.390    -.7242149    .2829627
   _Ieduc_73 |   .4605057   .2050609     2.25   0.025     .0583057    .8627057
   _Ieduc_74 |   .2011678   .1008459     1.99   0.046     .0033718    .3989639
   _Ieduc_75 |   .4134788   .0936508     4.42   0.000     .2297952    .5971625
   _Ieduc_76 |   .5236509   .1175299     4.46   0.000     .2931315    .7541704
   _Ieduc_77 |   .4860397   .1528203     3.18   0.001     .1863028    .7857766
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |   .4253192   .1026499     4.14   0.000     .2239849    .6266536
   _Ieduc_85 |   .5648934   .1032055     5.47   0.000     .3624694    .7673174
   _Ieduc_86 |   .6627514   .1317025     5.03   0.000     .4044343    .9210686
   _Ieduc_87 |   .2319213   .2864933     0.81   0.418    -.3299977    .7938403
   _Ieduc_99 |  -.1603238   .1135188    -1.41   0.158    -.3829761    .0623284
   _Inuts2_2 |  -.0927108   .0327449    -2.83   0.005    -.1569357    -.028486
   _Inuts2_3 |  -.1540974   .0569177    -2.71   0.007    -.2657341   -.0424608
   _Inuts2_4 |  -.1005532    .032098    -3.13   0.002    -.1635091   -.0375972
   _Inuts2_5 |    -.15227   .0598443    -2.54   0.011    -.2696468   -.0348932
   _Inuts2_6 |   .4114666   .0790827     5.20   0.000     .2563563    .5665769
        pats |   .0429445   .0162139     2.65   0.008     .0111431    .0747458
     lagpats |    .010869   .0232641     0.47   0.640    -.0347604    .0564985
     lagpat2 |  -.0109639   .0195838    -0.56   0.576    -.0493749     .027447
     lagpat3 |    .031402    .021125     1.49   0.137     -.010032     .072836
     lagpat4 |   .0425861   .0223595     1.90   0.057    -.0012691    .0864412
     lagpat5 |     .03154    .020804     1.52   0.130    -.0092643    .0723443
     lagpat6 |   .0195818   .0145666     1.34   0.179    -.0089886    .0481522
     lagpat7 |  -.0303105    .021918    -1.38   0.167    -.0732998    .0126788
       _cons |    7.39819   .6219893    11.89   0.000      6.17824     8.61814
------------------------------------------------------------------------------

. xi: xtreg logwage $expl_1, fe robust  ;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: female omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_8 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =     15996
Group variable: id                              Number of groups   =      2156

R-sq:  within  = 0.2267                         Obs per group: min =         1
       between = 0.1754                                        avg =       7.4
       overall = 0.1650                                        max =         9

                                                F(63,2155)         =         .
corr(u_i, Xb)  = -0.4952                        Prob > F           =         .

                                  (Std. Err. adjusted for 2156 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .1286046   .0102335    12.57   0.000      .108536    .1486732
        age2 |  -.0010832   .0001122    -9.66   0.000    -.0013032   -.0008633
      tenure |   .0092722   .0015646     5.93   0.000     .0062039    .0123405
      female |          0  (omitted)
      months |   .0901272   .0079199    11.38   0.000     .0745957    .1056587
         emp |   .0022978   .0003227     7.12   0.000     .0016649    .0029306
_Ivuosi_1992 |  -.0444937   .0098657    -4.51   0.000     -.063841   -.0251463
_Ivuosi_1993 |  -.0884529   .0102751    -8.61   0.000    -.1086031   -.0683027
_Ivuosi_1994 |  -.0809831   .0110476    -7.33   0.000    -.1026481   -.0593182
_Ivuosi_1995 |  -.0720762   .0118502    -6.08   0.000    -.0953153   -.0488372
_Ivuosi_1996 |  -.0850446    .013569    -6.27   0.000    -.1116544   -.0584349
_Ivuosi_1997 |  -.0689768   .0128854    -5.35   0.000     -.094246   -.0437075
_Ivuosi_1998 |    -.01662   .0140024    -1.19   0.235    -.0440797    .0108397
_Ivuosi_1999 |          0  (omitted)
  _Isector_2 |  -.1976468   .1003966    -1.97   0.049    -.3945312   -.0007625
  _Isector_3 |  -3.018417   .0921882   -32.74   0.000    -3.199204    -2.83763
  _Isector_4 |  -.0709071   .1164145    -0.61   0.543    -.2992035    .1573892
  _Isector_5 |  -.1029347   .0243995    -4.22   0.000    -.1507837   -.0550857
  _Isector_6 |          0  (omitted)
  _Isector_7 |  -.1887231   .0713051    -2.65   0.008    -.3285571   -.0488891
  _Isector_8 |          0  (omitted)
  _Isector_9 |  -.2496724   .1189099    -2.10   0.036    -.4828625   -.0164823
 _Isector_10 |  -.2478904   .0952197    -2.60   0.009    -.4346224   -.0611584
 _Isector_11 |  -.6055113   .1069291    -5.66   0.000    -.8152062   -.3958163
 _Isector_12 |  -.1365508   .0674205    -2.03   0.043    -.2687668   -.0043348
 _Isector_13 |   -.157471   .0530391    -2.97   0.003    -.2614841    -.053458
 _Isector_14 |  -.0283834   .0838441    -0.34   0.735    -.1928071    .1360403
 _Isector_15 |  -.0094734   .1165635    -0.08   0.935     -.238062    .2191151
 _Isector_16 |  -.2589896     .07683    -3.37   0.001    -.4096583   -.1083209
 _Isector_17 |  -.1063354   .0645767    -1.65   0.100    -.2329746    .0203037
 _Isector_18 |  -.1355645    .056825    -2.39   0.017     -.247002    -.024127
 _Isector_19 |  -.1778336   .0675512    -2.63   0.009     -.310306   -.0453612
 _Isector_20 |  -.1298065   .0753568    -1.72   0.085    -.2775861    .0179731
 _Isector_21 |  -.2362339   .0705267    -3.35   0.001    -.3745413   -.0979265
 _Isector_22 |  -.1641894   .0641734    -2.56   0.011    -.2900376   -.0383412
 _Isector_23 |   -.197772   .0822496    -2.40   0.016    -.3590688   -.0364752
 _Isector_24 |  -.0681867   .1022143    -0.67   0.505    -.2686356    .1322623
 _Isector_25 |  -.1894994   .0771143    -2.46   0.014    -.3407255   -.0382733
 _Isector_26 |  -.1563269   .1047425    -1.49   0.136    -.3617338      .04908
 _Isector_27 |   .0890258   .1255843     0.71   0.478    -.1572533    .3353048
 _Isector_28 |  -.1343034   .0674597    -1.99   0.047    -.2665963   -.0020105
 _Isector_29 |  -.1550931   .0721648    -2.15   0.032     -.296613   -.0135732
 _Isector_30 |    -.13101   .0900233    -1.46   0.146    -.3075516    .0455315
 _Isector_31 |  -.0730655    .450344    -0.16   0.871    -.9562195    .8100885
 _Isector_32 |  -.1617117    .068109    -2.37   0.018    -.2952779   -.0281455
 _Isector_33 |  -.1783286   .0754114    -2.36   0.018    -.3262153   -.0304419
 _Isector_34 |  -.6032246    .468468    -1.29   0.198    -1.521921    .3154719
 _Isector_35 |  -.1874338   .1051145    -1.78   0.075    -.3935701    .0187026
 _Isector_36 |   2.148447   .0599148    35.86   0.000      2.03095    2.265944
 _Isector_37 |   .2359266   .0570454     4.14   0.000     .1240568    .3477964
 _Isector_38 |  -.1051317   .0965268    -1.09   0.276     -.294427    .0841637
 _Isector_39 |  -.0249263   .0641138    -0.39   0.697    -.1506577    .1008051
 _Isector_40 |  -.0858201   .1062104    -0.81   0.419    -.2941056    .1224654
 _Isector_41 |  -.1497658   .0749288    -2.00   0.046     -.296706   -.0028256
 _Isector_42 |  -.0917292   .0526183    -1.74   0.081    -.1949172    .0114588
 _Isector_43 |   -.382676   .0695806    -5.50   0.000    -.5191282   -.2462238
 _Isector_44 |     1.3461   .8059121     1.67   0.095     -.234346    2.926547
 _Isector_45 |   .1479312   .2396106     0.62   0.537    -.3219608    .6178233
 _Isector_46 |   -.184186   .1205402    -1.53   0.127    -.4205732    .0522011
   _Ieduc_32 |          0  (omitted)
   _Ieduc_33 |          0  (omitted)
   _Ieduc_35 |  -.2303687    .100716    -2.29   0.022    -.4278793    -.032858
   _Ieduc_36 |          0  (omitted)
   _Ieduc_37 |          0  (omitted)
   _Ieduc_38 |          0  (omitted)
   _Ieduc_53 |          0  (omitted)
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |    .450078   .1428836     3.15   0.002     .1698739    .7302821
   _Ieduc_56 |          0  (omitted)
   _Ieduc_57 |          0  (omitted)
   _Ieduc_63 |          0  (omitted)
   _Ieduc_64 |  -.0364191   .2260673    -0.16   0.872    -.4797519    .4069138
   _Ieduc_65 |   .4193743   .0756092     5.55   0.000     .2710998    .5676489
   _Ieduc_66 |    .431274   .1342919     3.21   0.001     .1679188    .6946291
   _Ieduc_72 |          0  (omitted)
   _Ieduc_73 |   .4432397   .0576524     7.69   0.000     .3301796    .5562997
   _Ieduc_74 |   .2452924   .1200684     2.04   0.041     .0098305    .4807544
   _Ieduc_75 |   .4241649   .0546655     7.76   0.000     .3169623    .5313675
   _Ieduc_76 |   .8614184   .1115929     7.72   0.000     .6425774    1.080259
   _Ieduc_77 |  -.1481403   .1104901    -1.34   0.180    -.3648186     .068538
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |   .2456518   .1151456     2.13   0.033     .0198436    .4714599
   _Ieduc_85 |   .4885264   .0901319     5.42   0.000     .3117719    .6652809
   _Ieduc_86 |   .8873482   .1154108     7.69   0.000       .66102    1.113676
   _Ieduc_87 |   .0190109   .0990031     0.19   0.848    -.1751407    .2131624
   _Ieduc_99 |   .2702988   .0941048     2.87   0.004     .0857531    .4548445
   _Inuts2_2 |  -.0733098   .0753806    -0.97   0.331    -.2211361    .0745164
   _Inuts2_3 |  -.0920807   .0656718    -1.40   0.161    -.2208675     .036706
   _Inuts2_4 |  -.0389564   .0984043    -0.40   0.692    -.2319338     .154021
   _Inuts2_5 |  -.1586756   .0856842    -1.85   0.064     -.326708    .0093567
   _Inuts2_6 |  -.0881263   .0120229    -7.33   0.000     -.111704   -.0645485
        pats |   .0161245   .0072482     2.22   0.026     .0019103    .0303387
       _cons |   5.852745   .2479538    23.60   0.000     5.366492    6.338999
-------------+----------------------------------------------------------------
     sigma_u |  .50491668
     sigma_e |   .3659747
         rho |  .65557999   (fraction of variance due to u_i)
------------------------------------------------------------------------------

.  /* TABLE 2 */
> xi: xtreg logwage $expl_2, fe robust  ;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: female omitted because of collinearity
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_8 omitted because of collinearity
note: _Isector_37 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_76 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity
note: _Ieduc_86 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =     14161
Group variable: id                              Number of groups   =      2127

R-sq:  within  = 0.1725                         Obs per group: min =         1
       between = 0.0797                                        avg =       6.7
       overall = 0.0890                                        max =         8

                                                F(62,2126)         =         .
corr(u_i, Xb)  = -0.5897                        Prob > F           =         .

                                  (Std. Err. adjusted for 2127 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .1371895   .0119663    11.46   0.000     .1137226    .1606563
        age2 |  -.0011182   .0001313    -8.52   0.000    -.0013757   -.0008608
      tenure |   .0071268   .0014741     4.83   0.000      .004236    .0100177
      female |          0  (omitted)
      months |   .0345564   .0089071     3.88   0.000     .0170889     .052024
         emp |   .0025056   .0003553     7.05   0.000     .0018088    .0032024
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |  -.0409739   .0095094    -4.31   0.000    -.0596225   -.0223253
_Ivuosi_1994 |  -.0335349   .0102612    -3.27   0.001    -.0536579    -.013412
_Ivuosi_1995 |  -.0339334   .0116594    -2.91   0.004    -.0567985   -.0110682
_Ivuosi_1996 |  -.0504728   .0133082    -3.79   0.000    -.0765712   -.0243744
_Ivuosi_1997 |  -.0442354    .012802    -3.46   0.001    -.0693412   -.0191296
_Ivuosi_1998 |   .0024029   .0140167     0.17   0.864     -.025085    .0298908
_Ivuosi_1999 |          0  (omitted)
  _Isector_2 |  -.0942753   .1008562    -0.93   0.350    -.2920624    .1035118
  _Isector_3 |          0  (omitted)
  _Isector_4 |  -.0334878   .1445366    -0.23   0.817    -.3169357      .24996
  _Isector_5 |   -.092006   .0245926    -3.74   0.000    -.1402341    -.043778
  _Isector_6 |          0  (omitted)
  _Isector_7 |  -.2370403   .0718142    -3.30   0.001    -.3778737   -.0962069
  _Isector_8 |          0  (omitted)
  _Isector_9 |  -.1364314   .0948717    -1.44   0.151    -.3224824    .0496196
 _Isector_10 |   -.203048   .0892659    -2.27   0.023    -.3781056   -.0279905
 _Isector_11 |   -.473457   .0924095    -5.12   0.000    -.6546795   -.2922346
 _Isector_12 |  -.1422599   .0642954    -2.21   0.027    -.2683484   -.0161714
 _Isector_13 |  -.1441049   .0512032    -2.81   0.005    -.2445185   -.0436913
 _Isector_14 |   .0455808   .0739889     0.62   0.538    -.0995174    .1906791
 _Isector_15 |   .0573615   .1546109     0.37   0.711     -.245843    .3605659
 _Isector_16 |  -.2300746   .0685632    -3.36   0.001    -.3645325   -.0956167
 _Isector_17 |  -.0869465   .0635198    -1.37   0.171    -.2115139     .037621
 _Isector_18 |  -.1075598   .0531165    -2.02   0.043    -.2117256    -.003394
 _Isector_19 |  -.1269143   .0620413    -2.05   0.041    -.2485823   -.0052464
 _Isector_20 |  -.0682762   .0724216    -0.94   0.346    -.2103008    .0737485
 _Isector_21 |  -.2523417   .0689942    -3.66   0.000    -.3876448   -.1170386
 _Isector_22 |  -.1366556   .0603205    -2.27   0.024     -.254949   -.0183622
 _Isector_23 |  -.1623164   .0785455    -2.07   0.039    -.3163503   -.0082824
 _Isector_24 |   -.056133   .1062858    -0.53   0.597     -.264568     .152302
 _Isector_25 |  -.1250124   .0688892    -1.81   0.070    -.2601096    .0100849
 _Isector_26 |  -.0542354   .0720077    -0.75   0.451    -.1954482    .0869774
 _Isector_27 |   .0769479   .1131034     0.68   0.496    -.1448569    .2987528
 _Isector_28 |  -.0113094   .0917559    -0.12   0.902    -.1912502    .1686314
 _Isector_29 |  -.1575932   .0724551    -2.18   0.030    -.2996835    -.015503
 _Isector_30 |  -.2395367   .1268845    -1.89   0.059    -.4883675    .0092941
 _Isector_31 |  -.4765817      .4079    -1.17   0.243    -1.276506    .3233429
 _Isector_32 |   .1020112    .066499     1.53   0.125    -.0283987     .232421
 _Isector_33 |   .1084284   .0842307     1.29   0.198    -.0567548    .2736116
 _Isector_34 |  -.6143176   .5620643    -1.09   0.275    -1.716571    .4879357
 _Isector_35 |  -.1134614   .0937276    -1.21   0.226    -.2972688     .070346
 _Isector_36 |    2.16861    .058016    37.38   0.000     2.054836    2.282384
 _Isector_37 |          0  (omitted)
 _Isector_38 |  -.0113185   .0661323    -0.17   0.864    -.1410093    .1183723
 _Isector_39 |  -.0810149   .0924253    -0.88   0.381    -.2622684    .1002385
 _Isector_40 |  -.0246985   .0904579    -0.27   0.785    -.2020938    .1526967
 _Isector_41 |  -.1500603    .069775    -2.15   0.032    -.2868947   -.0132259
 _Isector_42 |  -.0954949   .0490687    -1.95   0.052    -.1917227    .0007328
 _Isector_43 |          0  (omitted)
 _Isector_44 |   1.541353   .8701061     1.77   0.077     -.164995    3.247701
 _Isector_45 |   .3141698   .3214406     0.98   0.328    -.3162012    .9445407
 _Isector_46 |  -.2139859    .175717    -1.22   0.223    -.5585812    .1306094
   _Ieduc_32 |          0  (omitted)
   _Ieduc_33 |          0  (omitted)
   _Ieduc_35 |  -.2787592   .1051751    -2.65   0.008    -.4850161   -.0725023
   _Ieduc_36 |          0  (omitted)
   _Ieduc_37 |          0  (omitted)
   _Ieduc_38 |          0  (omitted)
   _Ieduc_53 |          0  (omitted)
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |   .3979909   .1744468     2.28   0.023     .0558867    .7400952
   _Ieduc_56 |          0  (omitted)
   _Ieduc_57 |          0  (omitted)
   _Ieduc_63 |          0  (omitted)
   _Ieduc_64 |  -.3060714   .2952937    -1.04   0.300    -.8851661    .2730233
   _Ieduc_65 |   .3283101   .1033161     3.18   0.002     .1256989    .5309213
   _Ieduc_66 |     .27529   .1377625     2.00   0.046     .0051268    .5454533
   _Ieduc_72 |          0  (omitted)
   _Ieduc_73 |   1.081809   .0551593    19.61   0.000     .9736369     1.18998
   _Ieduc_74 |   .1214725   .1240532     0.98   0.328    -.1218058    .3647507
   _Ieduc_75 |   .2653715   .0858015     3.09   0.002     .0971078    .4336351
   _Ieduc_76 |          0  (omitted)
   _Ieduc_77 |  -.1510615   .1296529    -1.17   0.244    -.4053213    .1031983
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |   .1617419   .1201752     1.35   0.178    -.0739313    .3974151
   _Ieduc_85 |   .3761475   .1058251     3.55   0.000     .1686159    .5836791
   _Ieduc_86 |          0  (omitted)
   _Ieduc_87 |  -.0708345   .1240523    -0.57   0.568     -.314111     .172442
   _Ieduc_99 |   .2654247   .1534765     1.73   0.084    -.0355551    .5664044
   _Inuts2_2 |  -.1173999    .096116    -1.22   0.222    -.3058911    .0710913
   _Inuts2_3 |  -.0665541   .0692425    -0.96   0.337    -.2023442     .069236
   _Inuts2_4 |  -.1348936   .1098488    -1.23   0.220    -.3503159    .0805287
   _Inuts2_5 |  -.2159283   .0984242    -2.19   0.028     -.408946   -.0229105
   _Inuts2_6 |  -.0799071   .0126963    -6.29   0.000    -.1048055   -.0550086
        pats |   .0148976   .0078436     1.90   0.058    -.0004843    .0302796
     lagpats |  -.0001626   .0079838    -0.02   0.984    -.0158194    .0154942
       _cons |    6.33942   .3000379    21.13   0.000     5.751021    6.927818
-------------+----------------------------------------------------------------
     sigma_u |   .5448567
     sigma_e |  .35654779
         rho |  .70017033   (fraction of variance due to u_i)
------------------------------------------------------------------------------

. xi: xtreg logwage $expl_3, fe robust  ;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: female omitted because of collinearity
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_8 omitted because of collinearity
note: _Isector_11 omitted because of collinearity
note: _Isector_33 omitted because of collinearity
note: _Isector_36 omitted because of collinearity
note: _Isector_37 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_73 omitted because of collinearity
note: _Ieduc_76 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity
note: _Ieduc_86 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =     12357
Group variable: id                              Number of groups   =      2096

R-sq:  within  = 0.1569                         Obs per group: min =         1
       between = 0.0558                                        avg =       5.9
       overall = 0.0620                                        max =         7

                                                F(59,2095)         =         .
corr(u_i, Xb)  = -0.6494                        Prob > F           =         .

                                  (Std. Err. adjusted for 2096 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .1459162   .0136622    10.68   0.000     .1191233    .1727092
        age2 |  -.0011578   .0001452    -7.97   0.000    -.0014425    -.000873
      tenure |   .0068199   .0015105     4.51   0.000     .0038575    .0097822
      female |          0  (omitted)
      months |   .0232521   .0083608     2.78   0.005     .0068557    .0396485
         emp |   .0029296    .000434     6.75   0.000     .0020785    .0037807
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |   .0068462   .0090191     0.76   0.448    -.0108412    .0245337
_Ivuosi_1995 |  -.0040237   .0106396    -0.38   0.705    -.0248889    .0168416
_Ivuosi_1996 |  -.0277729   .0123856    -2.24   0.025    -.0520622   -.0034836
_Ivuosi_1997 |  -.0315581    .012375    -2.55   0.011    -.0558266   -.0072896
_Ivuosi_1998 |   .0113719   .0140568     0.81   0.419    -.0161947    .0389386
_Ivuosi_1999 |          0  (omitted)
  _Isector_2 |  -.1374371   .1249639    -1.10   0.272    -.3825035    .1076293
  _Isector_3 |          0  (omitted)
  _Isector_4 |  -.0072559   .1494858    -0.05   0.961    -.3004121    .2859003
  _Isector_5 |  -.1283581    .027827    -4.61   0.000    -.1829296   -.0737866
  _Isector_6 |          0  (omitted)
  _Isector_7 |  -.2560963   .0733167    -3.49   0.000    -.3998775   -.1123152
  _Isector_8 |          0  (omitted)
  _Isector_9 |  -.2047204   .1019397    -2.01   0.045    -.4046341   -.0048068
 _Isector_10 |  -.2568938   .0911719    -2.82   0.005    -.4356907   -.0780969
 _Isector_11 |          0  (omitted)
 _Isector_12 |  -.2517665   .0717976    -3.51   0.000    -.3925685   -.1109645
 _Isector_13 |  -.1822438    .054892    -3.32   0.001    -.2898922   -.0745953
 _Isector_14 |   .0579256    .094215     0.61   0.539    -.1268391    .2426903
 _Isector_15 |    .055208   .1600243     0.34   0.730    -.2586153    .3690312
 _Isector_16 |  -.2787201   .0756044    -3.69   0.000    -.4269878   -.1304525
 _Isector_17 |  -.1759865   .0671972    -2.62   0.009    -.3077667   -.0442062
 _Isector_18 |  -.1590021   .0549556    -2.89   0.004    -.2667753   -.0512288
 _Isector_19 |  -.2018782   .0720522    -2.80   0.005    -.3431797   -.0605768
 _Isector_20 |  -.1439421   .0698434    -2.06   0.039    -.2809117   -.0069725
 _Isector_21 |  -.3505118   .0912449    -3.84   0.000     -.529452   -.1715716
 _Isector_22 |  -.1791062   .0641698    -2.79   0.005    -.3049494   -.0532631
 _Isector_23 |  -.2343942    .076104    -3.08   0.002    -.3836415    -.085147
 _Isector_24 |  -.1160781   .1233617    -0.94   0.347    -.3580023    .1258461
 _Isector_25 |  -.2410012   .0892532    -2.70   0.007    -.4160355    -.065967
 _Isector_26 |  -.1879549   .0742345    -2.53   0.011    -.3335359   -.0423739
 _Isector_27 |  -.0023368   .1275813    -0.02   0.985    -.2525361    .2478624
 _Isector_28 |    .003317   .0786689     0.04   0.966    -.1509604    .1575943
 _Isector_29 |  -.2066944   .0721147    -2.87   0.004    -.3481184   -.0652704
 _Isector_30 |  -.1524876   .1209494    -1.26   0.208    -.3896812    .0847059
 _Isector_31 |  -.2009926   .4606079    -0.44   0.663    -1.104289    .7023043
 _Isector_32 |   .0483698   .0476809     1.01   0.310    -.0451371    .1418767
 _Isector_33 |          0  (omitted)
 _Isector_34 |  -.8538879   .6463324    -1.32   0.187    -2.121408    .4136326
 _Isector_35 |  -.1907529   .1252285    -1.52   0.128    -.4363381    .0548324
 _Isector_36 |          0  (omitted)
 _Isector_37 |          0  (omitted)
 _Isector_38 |   .0421101   .0583403     0.72   0.470    -.0723009    .1565212
 _Isector_39 |   -.110461   .1155577    -0.96   0.339    -.3370807    .1161588
 _Isector_40 |  -.1160863   .0912731    -1.27   0.204    -.2950817    .0629092
 _Isector_41 |   -.168387   .0712723    -2.36   0.018    -.3081589   -.0286152
 _Isector_42 |  -.1275264   .0540023    -2.36   0.018    -.2334301   -.0216226
 _Isector_43 |          0  (omitted)
 _Isector_44 |   1.604249   .8479846     1.89   0.059    -.0587306    3.267229
 _Isector_45 |   .2192327   .2803129     0.78   0.434    -.3304882    .7689535
 _Isector_46 |  -.2635552   .2252139    -1.17   0.242    -.7052216    .1781111
   _Ieduc_32 |          0  (omitted)
   _Ieduc_33 |          0  (omitted)
   _Ieduc_35 |  -.2393731   .1559888    -1.53   0.125    -.5452823     .066536
   _Ieduc_36 |          0  (omitted)
   _Ieduc_37 |          0  (omitted)
   _Ieduc_38 |          0  (omitted)
   _Ieduc_53 |          0  (omitted)
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |   .4272433   .2167983     1.97   0.049     .0020808    .8524058
   _Ieduc_56 |          0  (omitted)
   _Ieduc_57 |          0  (omitted)
   _Ieduc_63 |          0  (omitted)
   _Ieduc_64 |   .3427867   .1514391     2.26   0.024        .0458    .6397734
   _Ieduc_65 |   .3221864   .1521409     2.12   0.034     .0238233    .6205495
   _Ieduc_66 |   .3939065   .1734507     2.27   0.023     .0537529    .7340602
   _Ieduc_72 |          0  (omitted)
   _Ieduc_73 |          0  (omitted)
   _Ieduc_74 |   .2113465   .1683773     1.26   0.210    -.1188576    .5415507
   _Ieduc_75 |   .2635229   .1306821     2.02   0.044     .0072427    .5198031
   _Ieduc_76 |          0  (omitted)
   _Ieduc_77 |   -.294107   .0243209   -12.09   0.000    -.3418028   -.2464113
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |    .123702   .1546614     0.80   0.424    -.1796041     .427008
   _Ieduc_85 |   .3913556   .1449406     2.70   0.007     .1071131    .6755982
   _Ieduc_86 |          0  (omitted)
   _Ieduc_87 |  -.4545346   .0250464   -18.15   0.000     -.503653   -.4054162
   _Ieduc_99 |   .2896685    .193209     1.50   0.134     -.089233    .6685701
   _Inuts2_2 |  -.1972459   .0849643    -2.32   0.020    -.3638691   -.0306226
   _Inuts2_3 |  -.0495032   .0663828    -0.75   0.456    -.1796863      .08068
   _Inuts2_4 |  -.0872368   .1222251    -0.71   0.475    -.3269322    .1524585
   _Inuts2_5 |  -.2792264   .1306452    -2.14   0.033    -.5354343   -.0230184
   _Inuts2_6 |   -.056024   .0126087    -4.44   0.000    -.0807508   -.0312971
        pats |   .0145036   .0082263     1.76   0.078     -.001629    .0306361
     lagpats |  -.0016409   .0089846    -0.18   0.855    -.0192607    .0159788
     lagpat2 |  -.0115309   .0078013    -1.48   0.140    -.0268299    .0037681
       _cons |   6.239594   .3494801    17.85   0.000      5.55423    6.924959
-------------+----------------------------------------------------------------
     sigma_u |  .58892381
     sigma_e |  .35176388
         rho |  .73704641   (fraction of variance due to u_i)
------------------------------------------------------------------------------

. xi: xtreg logwage $expl_4, fe robust  ;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: female omitted because of collinearity
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_7 omitted because of collinearity
note: _Isector_8 omitted because of collinearity
note: _Isector_11 omitted because of collinearity
note: _Isector_28 omitted because of collinearity
note: _Isector_33 omitted because of collinearity
note: _Isector_34 omitted because of collinearity
note: _Isector_36 omitted because of collinearity
note: _Isector_37 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_73 omitted because of collinearity
note: _Ieduc_76 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity
note: _Ieduc_86 omitted because of collinearity
note: _Ieduc_87 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =     10572
Group variable: id                              Number of groups   =      2054

R-sq:  within  = 0.1392                         Obs per group: min =         1
       between = 0.0778                                        avg =       5.1
       overall = 0.0744                                        max =         6

                                                F(56,2053)         =         .
corr(u_i, Xb)  = -0.6189                        Prob > F           =         .

                                  (Std. Err. adjusted for 2054 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .1417381    .015948     8.89   0.000     .1104621    .1730141
        age2 |  -.0011437   .0001711    -6.68   0.000    -.0014793   -.0008081
      tenure |   .0062403   .0015856     3.94   0.000     .0031308    .0093498
      female |          0  (omitted)
      months |   .0221638   .0075724     2.93   0.003     .0073135    .0370141
         emp |   .0031879   .0004897     6.51   0.000     .0022275    .0041482
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |          0  (omitted)
_Ivuosi_1995 |  -.0079792   .0090888    -0.88   0.380    -.0258035     .009845
_Ivuosi_1996 |  -.0364584    .011515    -3.17   0.002    -.0590407   -.0138761
_Ivuosi_1997 |   -.033673   .0120593    -2.79   0.005    -.0573227   -.0100233
_Ivuosi_1998 |   .0066801   .0138225     0.48   0.629    -.0204274    .0337876
_Ivuosi_1999 |          0  (omitted)
  _Isector_2 |  -.0966785   .1624671    -0.60   0.552    -.4152959    .2219389
  _Isector_3 |          0  (omitted)
  _Isector_4 |   .2455248   .2378705     1.03   0.302    -.2209678    .7120175
  _Isector_5 |  -.1500438   .0322912    -4.65   0.000    -.2133706   -.0867169
  _Isector_6 |          0  (omitted)
  _Isector_7 |          0  (omitted)
  _Isector_8 |          0  (omitted)
  _Isector_9 |  -.1893416   .1345473    -1.41   0.160     -.453205    .0745219
 _Isector_10 |  -.2491254   .1211666    -2.06   0.040    -.4867477   -.0115031
 _Isector_11 |          0  (omitted)
 _Isector_12 |  -.2221824   .0958445    -2.32   0.021    -.4101449   -.0342199
 _Isector_13 |  -.1928537   .0659776    -2.92   0.004    -.3222437   -.0634638
 _Isector_14 |   .1196678   .1347422     0.89   0.375    -.1445778    .3839135
 _Isector_15 |   .1993104   .2376727     0.84   0.402    -.2667944    .6654151
 _Isector_16 |  -.3100845   .0882057    -3.52   0.000    -.4830665   -.1371025
 _Isector_17 |  -.1706738     .07306    -2.34   0.020    -.3139532   -.0273944
 _Isector_18 |  -.1596587    .062437    -2.56   0.011    -.2821052   -.0372122
 _Isector_19 |  -.2023795   .0810423    -2.50   0.013    -.3613132   -.0434457
 _Isector_20 |  -.1379927    .080446    -1.72   0.086     -.295757    .0197715
 _Isector_21 |  -.4116694   .1093245    -3.77   0.000    -.6260679   -.1972709
 _Isector_22 |  -.1857532   .0742811    -2.50   0.012    -.3314275    -.040079
 _Isector_23 |  -.2019747   .0823664    -2.45   0.014    -.3635051   -.0404443
 _Isector_24 |   -.129657   .1370816    -0.95   0.344    -.3984904    .1391765
 _Isector_25 |  -.2266511   .1155316    -1.96   0.050    -.4532224   -.0000798
 _Isector_26 |  -.2118101   .0921648    -2.30   0.022    -.3925564   -.0310638
 _Isector_27 |   .0666926   .1351693     0.49   0.622    -.1983907    .3317759
 _Isector_28 |          0  (omitted)
 _Isector_29 |  -.2196828   .0690804    -3.18   0.001    -.3551579   -.0842078
 _Isector_30 |  -.2462982   .1426951    -1.73   0.084    -.5261405    .0335441
 _Isector_31 |    -.17562   .3477949    -0.50   0.614    -.8576875    .5064475
 _Isector_32 |   .0215506    .056442     0.38   0.703     -.089139    .1322402
 _Isector_33 |          0  (omitted)
 _Isector_34 |          0  (omitted)
 _Isector_35 |  -.2629766   .1149988    -2.29   0.022     -.488503   -.0374502
 _Isector_36 |          0  (omitted)
 _Isector_37 |          0  (omitted)
 _Isector_38 |    .070843   .0728041     0.97   0.331    -.0719345    .2136205
 _Isector_39 |  -.0310673   .0650524    -0.48   0.633    -.1586429    .0965084
 _Isector_40 |  -.1230126   .1054359    -1.17   0.243    -.3297851    .0837598
 _Isector_41 |  -.1931667   .0838148    -2.30   0.021    -.3575377   -.0287957
 _Isector_42 |  -.1256765   .0636701    -1.97   0.049    -.2505412   -.0008117
 _Isector_43 |          0  (omitted)
 _Isector_44 |   1.700015   .8421579     2.02   0.044     .0484425    3.351588
 _Isector_45 |    .174453   .2548231     0.68   0.494    -.3252857    .6741917
 _Isector_46 |  -.1680299   .1708133    -0.98   0.325    -.5030152    .1669555
   _Ieduc_32 |          0  (omitted)
   _Ieduc_33 |          0  (omitted)
   _Ieduc_35 |  -.1855534     .13022    -1.42   0.154    -.4409305    .0698237
   _Ieduc_36 |          0  (omitted)
   _Ieduc_37 |          0  (omitted)
   _Ieduc_38 |          0  (omitted)
   _Ieduc_53 |          0  (omitted)
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |   .4679322   .2517915     1.86   0.063    -.0258613    .9617257
   _Ieduc_56 |          0  (omitted)
   _Ieduc_57 |          0  (omitted)
   _Ieduc_63 |          0  (omitted)
   _Ieduc_64 |   .7510041   .1671324     4.49   0.000     .4232374    1.078771
   _Ieduc_65 |   .3123364   .1802865     1.73   0.083    -.0412271    .6658998
   _Ieduc_66 |   .5396692   .2185824     2.47   0.014     .1110028    .9683357
   _Ieduc_72 |          0  (omitted)
   _Ieduc_73 |          0  (omitted)
   _Ieduc_74 |   .3376948   .2124939     1.59   0.112    -.0790312    .7544208
   _Ieduc_75 |   .4976789   .1427589     3.49   0.001     .2177116    .7776462
   _Ieduc_76 |          0  (omitted)
   _Ieduc_77 |   .1545441   .0108483    14.25   0.000     .1332692     .175819
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |    .259196    .185024     1.40   0.161    -.1036582    .6220503
   _Ieduc_85 |    .740879   .1671578     4.43   0.000     .4130625    1.068695
   _Ieduc_86 |          0  (omitted)
   _Ieduc_87 |          0  (omitted)
   _Ieduc_99 |   .3230574   .2238156     1.44   0.149    -.1158718    .7619867
   _Inuts2_2 |   -.205277   .1116298    -1.84   0.066    -.4241965    .0136425
   _Inuts2_3 |  -.0548464   .0893468    -0.61   0.539    -.2300663    .1203735
   _Inuts2_4 |  -.0400919   .1705998    -0.24   0.814    -.3746586    .2944749
   _Inuts2_5 |  -.3919574   .1711102    -2.29   0.022     -.727525   -.0563898
   _Inuts2_6 |  -.0599388    .013075    -4.58   0.000    -.0855803   -.0342972
        pats |   .0157515   .0083215     1.89   0.059     -.000568     .032071
     lagpats |  -.0020519   .0100592    -0.20   0.838    -.0217792    .0176754
     lagpat2 |  -.0123451   .0084019    -1.47   0.142    -.0288222    .0041321
     lagpat3 |   .0017844   .0111284     0.16   0.873    -.0200396    .0236085
       _cons |   6.289109   .3918334    16.05   0.000     5.520676    7.057541
-------------+----------------------------------------------------------------
     sigma_u |  .59038598
     sigma_e |  .33893651
         rho |  .75211559   (fraction of variance due to u_i)
------------------------------------------------------------------------------

. xi: xtreg logwage $expl_5, fe robust  ;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: female omitted because of collinearity
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_7 omitted because of collinearity
note: _Isector_8 omitted because of collinearity
note: _Isector_11 omitted because of collinearity
note: _Isector_28 omitted because of collinearity
note: _Isector_32 omitted because of collinearity
note: _Isector_33 omitted because of collinearity
note: _Isector_34 omitted because of collinearity
note: _Isector_36 omitted because of collinearity
note: _Isector_37 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Isector_45 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_64 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_73 omitted because of collinearity
note: _Ieduc_76 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity
note: _Ieduc_86 omitted because of collinearity
note: _Ieduc_87 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =      8612
Group variable: id                              Number of groups   =      1968

R-sq:  within  = 0.1127                         Obs per group: min =         1
       between = 0.0676                                        avg =       4.4
       overall = 0.0622                                        max =         5

                                                F(50,1967)         =         .
corr(u_i, Xb)  = -0.6016                        Prob > F           =         .

                                  (Std. Err. adjusted for 1968 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .1603266   .0222806     7.20   0.000     .1166306    .2040226
        age2 |  -.0013549    .000235    -5.76   0.000    -.0018159   -.0008939
      tenure |   .0059746   .0016028     3.73   0.000     .0028313    .0091179
      female |          0  (omitted)
      months |   .0186262   .0068934     2.70   0.007     .0051071    .0321453
         emp |   .0042158   .0007663     5.50   0.000     .0027128    .0057187
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |          0  (omitted)
_Ivuosi_1995 |          0  (omitted)
_Ivuosi_1996 |  -.0292672   .0085383    -3.43   0.001    -.0460124    -.012522
_Ivuosi_1997 |  -.0339478   .0103875    -3.27   0.001    -.0543195   -.0135761
_Ivuosi_1998 |    .007637   .0132039     0.58   0.563    -.0182582    .0335321
_Ivuosi_1999 |          0  (omitted)
  _Isector_2 |  -.0648595   .0080972    -8.01   0.000    -.0807394   -.0489795
  _Isector_3 |          0  (omitted)
  _Isector_4 |  -.1642529   .0965499    -1.70   0.089    -.3536037    .0250979
  _Isector_5 |  -.2207045   .0421601    -5.23   0.000    -.3033878   -.1380213
  _Isector_6 |          0  (omitted)
  _Isector_7 |          0  (omitted)
  _Isector_8 |          0  (omitted)
  _Isector_9 |  -.2700805   .2344392    -1.15   0.249    -.7298558    .1896949
 _Isector_10 |  -.3253388   .1891691    -1.72   0.086    -.6963316    .0456541
 _Isector_11 |          0  (omitted)
 _Isector_12 |  -.3334219   .1047665    -3.18   0.001    -.5388869   -.1279568
 _Isector_13 |  -.2760913   .0724974    -3.81   0.000     -.418271   -.1339116
 _Isector_14 |  -.0494323   .1212506    -0.41   0.684    -.2872254    .1883607
 _Isector_15 |  -.2166748    .096166    -2.25   0.024    -.4052727    -.028077
 _Isector_16 |  -.3590505   .1074237    -3.34   0.001    -.5697268   -.1483742
 _Isector_17 |  -.2356714   .0925751    -2.55   0.011     -.417227   -.0541158
 _Isector_18 |  -.2723607    .069919    -3.90   0.000    -.4094837   -.1352377
 _Isector_19 |  -.2746851   .0910846    -3.02   0.003    -.4533175   -.0960526
 _Isector_20 |  -.1964712    .081477    -2.41   0.016    -.3562615    -.036681
 _Isector_21 |  -.5239583   .1368632    -3.83   0.000    -.7923704   -.2555462
 _Isector_22 |  -.2574095   .0815356    -3.16   0.002    -.4173147   -.0975043
 _Isector_23 |  -.2305979    .146899    -1.57   0.117    -.5186919    .0574961
 _Isector_24 |   -.302454   .1423796    -2.12   0.034    -.5816847   -.0232233
 _Isector_25 |  -.2461098   .1109682    -2.22   0.027    -.4637374   -.0284822
 _Isector_26 |  -.4220875   .1445039    -2.92   0.004    -.7054843   -.1386906
 _Isector_27 |  -.0770697   .1973833    -0.39   0.696    -.4641721    .3100327
 _Isector_28 |          0  (omitted)
 _Isector_29 |  -.2956569   .0767245    -3.85   0.000    -.4461266   -.1451871
 _Isector_30 |  -.2656485   .1135518    -2.34   0.019     -.488343   -.0429541
 _Isector_31 |   .2275605   .1107121     2.06   0.040     .0104352    .4446859
 _Isector_32 |          0  (omitted)
 _Isector_33 |          0  (omitted)
 _Isector_34 |          0  (omitted)
 _Isector_35 |  -.2505733   .1580417    -1.59   0.113      -.56052    .0593735
 _Isector_36 |          0  (omitted)
 _Isector_37 |          0  (omitted)
 _Isector_38 |  -.0161145   .0881828    -0.18   0.855     -.189056    .1568269
 _Isector_39 |  -.1389598   .0721703    -1.93   0.054     -.280498    .0025784
 _Isector_40 |  -.1806944   .1134052    -1.59   0.111    -.4031014    .0417126
 _Isector_41 |  -.2612634   .0896371    -2.91   0.004    -.4370571   -.0854697
 _Isector_42 |  -.2315203   .0683235    -3.39   0.001    -.3655143   -.0975263
 _Isector_43 |          0  (omitted)
 _Isector_44 |   1.639762   .7990606     2.05   0.040     .0726674    3.206856
 _Isector_45 |          0  (omitted)
 _Isector_46 |  -.1182145   .1167838    -1.01   0.312    -.3472474    .1108185
   _Ieduc_32 |          0  (omitted)
   _Ieduc_33 |          0  (omitted)
   _Ieduc_35 |   -.103345   .1138775    -0.91   0.364    -.3266782    .1199882
   _Ieduc_36 |          0  (omitted)
   _Ieduc_37 |          0  (omitted)
   _Ieduc_38 |          0  (omitted)
   _Ieduc_53 |          0  (omitted)
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |   .5193232   .3411856     1.52   0.128       -.1498    1.188446
   _Ieduc_56 |          0  (omitted)
   _Ieduc_57 |          0  (omitted)
   _Ieduc_63 |          0  (omitted)
   _Ieduc_64 |          0  (omitted)
   _Ieduc_65 |   .3232891   .2879815     1.12   0.262    -.2414917      .88807
   _Ieduc_66 |    .712944   .2769693     2.57   0.010       .16976    1.256128
   _Ieduc_72 |          0  (omitted)
   _Ieduc_73 |          0  (omitted)
   _Ieduc_74 |   .5743066    .271939     2.11   0.035     .0409878    1.107625
   _Ieduc_75 |   .4885225   .2630097     1.86   0.063    -.0272845    1.004329
   _Ieduc_76 |          0  (omitted)
   _Ieduc_77 |   .1403614    .011433    12.28   0.000     .1179394    .1627834
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |   .4793291   .2778218     1.73   0.085    -.0655269    1.024185
   _Ieduc_85 |   .6924155   .2905458     2.38   0.017     .1226055    1.262226
   _Ieduc_86 |          0  (omitted)
   _Ieduc_87 |          0  (omitted)
   _Ieduc_99 |     .12803   .1610059     0.80   0.427    -.1877302    .4437901
   _Inuts2_2 |  -.2440192    .146151    -1.67   0.095    -.5306464    .0426079
   _Inuts2_3 |  -.1073741   .0814056    -1.32   0.187    -.2670244    .0522762
   _Inuts2_4 |  -.1148463   .1125936    -1.02   0.308    -.3356615    .1059689
   _Inuts2_5 |   -.388016   .1768656    -2.19   0.028    -.7348796   -.0411524
   _Inuts2_6 |  -.0557073   .0137387    -4.05   0.000    -.0826513   -.0287633
        pats |   .0155122   .0094019     1.65   0.099    -.0029265     .033951
     lagpats |  -.0043409   .0118204    -0.37   0.713    -.0275226    .0188409
     lagpat2 |  -.0106323   .0104097    -1.02   0.307    -.0310475    .0097828
     lagpat3 |    .004093   .0122689     0.33   0.739    -.0199685    .0281545
     lagpat4 |   .0209927   .0093639     2.24   0.025     .0026285     .039357
       _cons |   6.006527   .5525191    10.87   0.000     4.922942    7.090111
-------------+----------------------------------------------------------------
     sigma_u |  .59809906
     sigma_e |  .34774635
         rho |  .74735711   (fraction of variance due to u_i)
------------------------------------------------------------------------------

. xi: xtreg logwage $expl_6, fe robust  ;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: female omitted because of collinearity
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Ivuosi_1996 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_4 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_7 omitted because of collinearity
note: _Isector_8 omitted because of collinearity
note: _Isector_11 omitted because of collinearity
note: _Isector_28 omitted because of collinearity
note: _Isector_32 omitted because of collinearity
note: _Isector_33 omitted because of collinearity
note: _Isector_34 omitted because of collinearity
note: _Isector_36 omitted because of collinearity
note: _Isector_37 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Isector_45 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_64 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_73 omitted because of collinearity
note: _Ieduc_76 omitted because of collinearity
note: _Ieduc_77 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity
note: _Ieduc_86 omitted because of collinearity
note: _Ieduc_87 omitted because of collinearity
note: _Inuts2_6 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =      6746
Group variable: id                              Number of groups   =      1887

R-sq:  within  = 0.0961                         Obs per group: min =         1
       between = 0.0433                                        avg =       3.6
       overall = 0.0412                                        max =         4

                                                F(48,1886)         =         .
corr(u_i, Xb)  = -0.6372                        Prob > F           =         .

                                  (Std. Err. adjusted for 1887 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .1929597    .031428     6.14   0.000     .1313225     .254597
        age2 |   -.001623   .0003309    -4.90   0.000     -.002272   -.0009739
      tenure |   .0057234     .00182     3.14   0.002     .0021539    .0092928
      female |          0  (omitted)
      months |   .0150356   .0071602     2.10   0.036     .0009929    .0290784
         emp |   .0040136   .0007995     5.02   0.000     .0024456    .0055816
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |          0  (omitted)
_Ivuosi_1995 |          0  (omitted)
_Ivuosi_1996 |          0  (omitted)
_Ivuosi_1997 |  -.0163544   .0080332    -2.04   0.042    -.0321093   -.0005994
_Ivuosi_1998 |   .0134702   .0117659     1.14   0.252    -.0096054    .0365459
_Ivuosi_1999 |          0  (omitted)
  _Isector_2 |   -.075416   .0089834    -8.40   0.000    -.0930345   -.0577975
  _Isector_3 |          0  (omitted)
  _Isector_4 |          0  (omitted)
  _Isector_5 |  -.2451694   .0471253    -5.20   0.000    -.3375927   -.1527462
  _Isector_6 |          0  (omitted)
  _Isector_7 |          0  (omitted)
  _Isector_8 |          0  (omitted)
  _Isector_9 |  -.1134806   .3667296    -0.31   0.757     -.832719    .6057577
 _Isector_10 |  -.2812933   .2870735    -0.98   0.327    -.8443083    .2817217
 _Isector_11 |          0  (omitted)
 _Isector_12 |  -.2859051   .1095415    -2.61   0.009    -.5007403   -.0710699
 _Isector_13 |  -.2145015   .0886781    -2.42   0.016     -.388419    -.040584
 _Isector_14 |  -.2052436   .0896116    -2.29   0.022    -.3809918   -.0294954
 _Isector_15 |   -.038281   .0158571    -2.41   0.016    -.0693804   -.0071816
 _Isector_16 |  -.3336124   .1187792    -2.81   0.005    -.5665648     -.10066
 _Isector_17 |  -.2072427   .1093849    -1.89   0.058    -.4217708    .0072855
 _Isector_18 |  -.1914413   .0806798    -2.37   0.018    -.3496724   -.0332103
 _Isector_19 |  -.2043082   .1172557    -1.74   0.082    -.4342727    .0256563
 _Isector_20 |  -.1369376   .0914861    -1.50   0.135    -.3163623    .0424871
 _Isector_21 |  -.4387537   .1697889    -2.58   0.010    -.7717476   -.1057598
 _Isector_22 |  -.2104776   .0904656    -2.33   0.020    -.3879007   -.0330545
 _Isector_23 |  -.1551304   .1982492    -0.78   0.434    -.5439413    .2336805
 _Isector_24 |  -.3012746   .1072961    -2.81   0.005    -.5117061    -.090843
 _Isector_25 |  -.1982225   .0842006    -2.35   0.019    -.3633586   -.0330864
 _Isector_26 |  -.4173041   .1924799    -2.17   0.030    -.7948001    -.039808
 _Isector_27 |   .1280784   .3666005     0.35   0.727    -.5909068    .8470637
 _Isector_28 |          0  (omitted)
 _Isector_29 |  -.2097359    .082378    -2.55   0.011    -.3712976   -.0481742
 _Isector_30 |  -.2769252   .1682707    -1.65   0.100    -.6069415    .0530911
 _Isector_31 |   .1880235   .1660641     1.13   0.258    -.1376652    .5137122
 _Isector_32 |          0  (omitted)
 _Isector_33 |          0  (omitted)
 _Isector_34 |          0  (omitted)
 _Isector_35 |  -.2478873   .1432144    -1.73   0.084    -.5287625     .032988
 _Isector_36 |          0  (omitted)
 _Isector_37 |          0  (omitted)
 _Isector_38 |   .0440593   .1085879     0.41   0.685    -.1689057    .2570244
 _Isector_39 |   -.106627   .0805815    -1.32   0.186    -.2646653    .0514112
 _Isector_40 |  -.1987877   .1517987    -1.31   0.191    -.4964986    .0989233
 _Isector_41 |  -.2214653   .0945645    -2.34   0.019    -.4069274   -.0360032
 _Isector_42 |  -.1889023   .0807554    -2.34   0.019    -.3472816   -.0305229
 _Isector_43 |          0  (omitted)
 _Isector_44 |   1.833809   .8385392     2.19   0.029     .1892467    3.478371
 _Isector_45 |          0  (omitted)
 _Isector_46 |  -.1504783    .093698    -1.61   0.108     -.334241    .0332844
   _Ieduc_32 |          0  (omitted)
   _Ieduc_33 |          0  (omitted)
   _Ieduc_35 |   .1441705   .1224046     1.18   0.239    -.0958923    .3842332
   _Ieduc_36 |          0  (omitted)
   _Ieduc_37 |          0  (omitted)
   _Ieduc_38 |          0  (omitted)
   _Ieduc_53 |          0  (omitted)
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |    .466465   .3982041     1.17   0.242    -.3145018    1.247432
   _Ieduc_56 |          0  (omitted)
   _Ieduc_57 |          0  (omitted)
   _Ieduc_63 |          0  (omitted)
   _Ieduc_64 |          0  (omitted)
   _Ieduc_65 |   .2300396    .404307     0.57   0.569    -.5628964    1.022976
   _Ieduc_66 |   .3287531   .4054415     0.81   0.418     -.466408    1.123914
   _Ieduc_72 |          0  (omitted)
   _Ieduc_73 |          0  (omitted)
   _Ieduc_74 |   .3174189   .4043466     0.79   0.433    -.4755948    1.110433
   _Ieduc_75 |   .5904112   .3425155     1.72   0.085    -.0813379     1.26216
   _Ieduc_76 |          0  (omitted)
   _Ieduc_77 |          0  (omitted)
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |   .3111406   .4126434     0.75   0.451    -.4981451    1.120426
   _Ieduc_85 |   .6112707   .3554315     1.72   0.086    -.0858096    1.308351
   _Ieduc_86 |          0  (omitted)
   _Ieduc_87 |          0  (omitted)
   _Ieduc_99 |   .3997575   .1762948     2.27   0.023     .0540042    .7455108
   _Inuts2_2 |  -.3346782    .170902    -1.96   0.050     -.669855    .0004986
   _Inuts2_3 |  -.0660945   .0851726    -0.78   0.438     -.233137     .100948
   _Inuts2_4 |  -.1958662   .1176436    -1.66   0.096    -.4265916    .0348591
   _Inuts2_5 |  -.4059452   .2187468    -1.86   0.064    -.8349565     .023066
   _Inuts2_6 |          0  (omitted)
        pats |   .0178448   .0110876     1.61   0.108    -.0039004      .03959
     lagpats |  -.0062756   .0159248    -0.39   0.694    -.0375077    .0249564
     lagpat2 |  -.0149702   .0146896    -1.02   0.308    -.0437799    .0138394
     lagpat3 |   .0093874   .0156807     0.60   0.549    -.0213659    .0401407
     lagpat4 |   .0303242   .0129997     2.33   0.020     .0048289    .0558196
     lagpat5 |   .0279589   .0136911     2.04   0.041     .0011076    .0548101
       _cons |   5.120328    .783657     6.53   0.000     3.583402    6.657254
-------------+----------------------------------------------------------------
     sigma_u |   .6552627
     sigma_e |   .3561176
         rho |  .77198443   (fraction of variance due to u_i)
------------------------------------------------------------------------------

. xi: xtreg logwage $expl_7, fe robust  ;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: female omitted because of collinearity
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Ivuosi_1996 omitted because of collinearity
note: _Ivuosi_1997 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_2 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_7 omitted because of collinearity
note: _Isector_8 omitted because of collinearity
note: _Isector_11 omitted because of collinearity
note: _Isector_15 omitted because of collinearity
note: _Isector_23 omitted because of collinearity
note: _Isector_28 omitted because of collinearity
note: _Isector_32 omitted because of collinearity
note: _Isector_33 omitted because of collinearity
note: _Isector_34 omitted because of collinearity
note: _Isector_36 omitted because of collinearity
note: _Isector_37 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Isector_45 omitted because of collinearity
note: _Isector_46 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_64 omitted because of collinearity
note: _Ieduc_66 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_73 omitted because of collinearity
note: _Ieduc_76 omitted because of collinearity
note: _Ieduc_77 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity
note: _Ieduc_86 omitted because of collinearity
note: _Ieduc_87 omitted because of collinearity
note: _Inuts2_6 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =      4938
Group variable: id                              Number of groups   =      1789

R-sq:  within  = 0.0753                         Obs per group: min =         1
       between = 0.0567                                        avg =       2.8
       overall = 0.0519                                        max =         3

                                                F(44,1788)         =         .
corr(u_i, Xb)  = -0.6614                        Prob > F           =         .

                                  (Std. Err. adjusted for 1789 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .2021221   .0483822     4.18   0.000     .1072305    .2970137
        age2 |  -.0016662   .0004957    -3.36   0.001    -.0026384   -.0006941
      tenure |   .0079091   .0022214     3.56   0.000     .0035522     .012266
      female |          0  (omitted)
      months |   .0067326   .0038062     1.77   0.077    -.0007325    .0141978
         emp |   .0042125   .0009948     4.23   0.000     .0022613    .0061637
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |          0  (omitted)
_Ivuosi_1995 |          0  (omitted)
_Ivuosi_1996 |          0  (omitted)
_Ivuosi_1997 |          0  (omitted)
_Ivuosi_1998 |    .027679   .0101267     2.73   0.006     .0078176    .0475403
_Ivuosi_1999 |          0  (omitted)
  _Isector_2 |          0  (omitted)
  _Isector_3 |          0  (omitted)
  _Isector_4 |   .0388162   .0187393     2.07   0.038      .002063    .0755694
  _Isector_5 |  -.3040536   .1947384    -1.56   0.119    -.6859924    .0778852
  _Isector_6 |          0  (omitted)
  _Isector_7 |          0  (omitted)
  _Isector_8 |          0  (omitted)
  _Isector_9 |   .0922459   .2718067     0.34   0.734    -.4408463    .6253382
 _Isector_10 |  -.4242726   .2443462    -1.74   0.083    -.9035067    .0549615
 _Isector_11 |          0  (omitted)
 _Isector_12 |  -.1675013   .1321885    -1.27   0.205    -.4267615     .091759
 _Isector_13 |   .0303543   .1122972     0.27   0.787    -.1898932    .2506018
 _Isector_14 |  -.1057394   .1477273    -0.72   0.474    -.3954757     .183997
 _Isector_15 |          0  (omitted)
 _Isector_16 |  -.2603395   .1543312    -1.69   0.092     -.563028     .042349
 _Isector_17 |  -.0361459   .2154378    -0.17   0.867    -.4586821    .3863904
 _Isector_18 |  -.1001885   .1308283    -0.77   0.444     -.356781    .1564039
 _Isector_19 |  -.0953258   .2092773    -0.46   0.649    -.5057796     .315128
 _Isector_20 |  -.0001142   .1473312    -0.00   0.999    -.2890736    .2888452
 _Isector_21 |  -.3585458   .2408046    -1.49   0.137    -.8308338    .1137422
 _Isector_22 |  -.0300226   .1278966    -0.23   0.814    -.2808651    .2208199
 _Isector_23 |          0  (omitted)
 _Isector_24 |  -.2196396   .1666998    -1.32   0.188    -.5465865    .1073074
 _Isector_25 |   .0192952   .1200342     0.16   0.872    -.2161268    .2547173
 _Isector_26 |  -.0095488   .1305028    -0.07   0.942    -.2655028    .2464052
 _Isector_27 |   .0022167   .1681515     0.01   0.989    -.3275775    .3320109
 _Isector_28 |          0  (omitted)
 _Isector_29 |  -.1180339   .1315367    -0.90   0.370    -.3760157    .1399479
 _Isector_30 |   .0407633   .1387973     0.29   0.769    -.2314588    .3129853
 _Isector_31 |   .3918356   .1382403     2.83   0.005      .120706    .6629653
 _Isector_32 |          0  (omitted)
 _Isector_33 |          0  (omitted)
 _Isector_34 |          0  (omitted)
 _Isector_35 |  -.1257492    .230748    -0.54   0.586    -.5783134     .326815
 _Isector_36 |          0  (omitted)
 _Isector_37 |          0  (omitted)
 _Isector_38 |   .1420112   .1649226     0.86   0.389      -.18145    .4654724
 _Isector_39 |   .0045397   .1418382     0.03   0.974    -.2736463    .2827258
 _Isector_40 |  -.1368984   .2071904    -0.66   0.509    -.5432592    .2694623
 _Isector_41 |  -.0126992   .1208972    -0.11   0.916    -.2498139    .2244154
 _Isector_42 |  -.0374939   .1317401    -0.28   0.776    -.2958745    .2208868
 _Isector_43 |          0  (omitted)
 _Isector_44 |   2.091958   .8595642     2.43   0.015     .4061016    3.777814
 _Isector_45 |          0  (omitted)
 _Isector_46 |          0  (omitted)
   _Ieduc_32 |          0  (omitted)
   _Ieduc_33 |          0  (omitted)
   _Ieduc_35 |   .0279799   .0636649     0.44   0.660    -.0968855    .1528453
   _Ieduc_36 |          0  (omitted)
   _Ieduc_37 |          0  (omitted)
   _Ieduc_38 |          0  (omitted)
   _Ieduc_53 |          0  (omitted)
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |    .855871   .3339959     2.56   0.010     .2008076    1.510934
   _Ieduc_56 |          0  (omitted)
   _Ieduc_57 |          0  (omitted)
   _Ieduc_63 |          0  (omitted)
   _Ieduc_64 |          0  (omitted)
   _Ieduc_65 |   .9751554    .285658     3.41   0.001     .4148969    1.535414
   _Ieduc_66 |          0  (omitted)
   _Ieduc_72 |          0  (omitted)
   _Ieduc_73 |          0  (omitted)
   _Ieduc_74 |   1.017576   .2822226     3.61   0.000      .464055    1.571097
   _Ieduc_75 |   1.053178   .2261596     4.66   0.000     .6096135    1.496743
   _Ieduc_76 |          0  (omitted)
   _Ieduc_77 |          0  (omitted)
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |   1.029982   .2820458     3.65   0.000     .4768078    1.583156
   _Ieduc_85 |   1.105903   .2471924     4.47   0.000     .6210867     1.59072
   _Ieduc_86 |          0  (omitted)
   _Ieduc_87 |          0  (omitted)
   _Ieduc_99 |   .2873109   .1230497     2.33   0.020     .0459745    .5286474
   _Inuts2_2 |  -.2758577   .1929502    -1.43   0.153    -.6542893     .102574
   _Inuts2_3 |  -.0388822   .1322542    -0.29   0.769    -.2982712    .2205067
   _Inuts2_4 |   -.155807   .1586858    -0.98   0.326     -.467036     .155422
   _Inuts2_5 |   -.110064    .108921    -1.01   0.312    -.3236898    .1035618
   _Inuts2_6 |          0  (omitted)
        pats |   .0234696   .0144068     1.63   0.103    -.0047864    .0517255
     lagpats |  -.0051862   .0230271    -0.23   0.822     -.050349    .0399765
     lagpat2 |  -.0236726   .0232171    -1.02   0.308    -.0692082     .021863
     lagpat3 |   .0126401   .0209713     0.60   0.547    -.0284907     .053771
     lagpat4 |   .0427013   .0208595     2.05   0.041     .0017898    .0836128
     lagpat5 |   .0551854   .0213094     2.59   0.010     .0133914    .0969795
     lagpat6 |   .0492608   .0184381     2.67   0.008     .0130983    .0854233
       _cons |   4.198674   1.198094     3.50   0.000     1.848863    6.548484
-------------+----------------------------------------------------------------
     sigma_u |  .68520388
     sigma_e |  .37931864
         rho |  .76542927   (fraction of variance due to u_i)
------------------------------------------------------------------------------

.  /* TABLE 3 */
> xi: xtreg logwage $expl_8, fe robust  ;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: female omitted because of collinearity
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Ivuosi_1996 omitted because of collinearity
note: _Ivuosi_1997 omitted because of collinearity
note: _Ivuosi_1998 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_2 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_4 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_7 omitted because of collinearity
note: _Isector_8 omitted because of collinearity
note: _Isector_11 omitted because of collinearity
note: _Isector_14 omitted because of collinearity
note: _Isector_15 omitted because of collinearity
note: _Isector_23 omitted because of collinearity
note: _Isector_28 omitted because of collinearity
note: _Isector_30 omitted because of collinearity
note: _Isector_31 omitted because of collinearity
note: _Isector_32 omitted because of collinearity
note: _Isector_33 omitted because of collinearity
note: _Isector_34 omitted because of collinearity
note: _Isector_36 omitted because of collinearity
note: _Isector_37 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Isector_44 omitted because of collinearity
note: _Isector_45 omitted because of collinearity
note: _Isector_46 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_64 omitted because of collinearity
note: _Ieduc_66 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_73 omitted because of collinearity
note: _Ieduc_76 omitted because of collinearity
note: _Ieduc_77 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity
note: _Ieduc_84 omitted because of collinearity
note: _Ieduc_86 omitted because of collinearity
note: _Ieduc_87 omitted because of collinearity
note: _Ieduc_99 omitted because of collinearity
note: _Inuts2_6 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =      3206
Group variable: id                              Number of groups   =      1691

R-sq:  within  = 0.0487                         Obs per group: min =         1
       between = 0.0454                                        avg =       1.9
       overall = 0.0377                                        max =         2

                                                F(37,1690)         =         .
corr(u_i, Xb)  = -0.4474                        Prob > F           =         .

                                  (Std. Err. adjusted for 1691 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .1934111   .0915784     2.11   0.035     .0137921    .3730302
        age2 |  -.0018458   .0009491    -1.94   0.052    -.0037074    .0000158
      tenure |    .005668   .0035866     1.58   0.114    -.0013667    .0127026
      female |          0  (omitted)
      months |  -.0024368   .0044938    -0.54   0.588    -.0112508    .0063772
         emp |   .0062707   .0018426     3.40   0.001     .0026568    .0098847
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |          0  (omitted)
_Ivuosi_1995 |          0  (omitted)
_Ivuosi_1996 |          0  (omitted)
_Ivuosi_1997 |          0  (omitted)
_Ivuosi_1998 |          0  (omitted)
_Ivuosi_1999 |          0  (omitted)
  _Isector_2 |          0  (omitted)
  _Isector_3 |          0  (omitted)
  _Isector_4 |          0  (omitted)
  _Isector_5 |  -.0973343   .0717052    -1.36   0.175    -.2379746     .043306
  _Isector_6 |          0  (omitted)
  _Isector_7 |          0  (omitted)
  _Isector_8 |          0  (omitted)
  _Isector_9 |   .4425746   .3023052     1.46   0.143    -.1503574    1.035507
 _Isector_10 |  -.4090172   .2770287    -1.48   0.140    -.9523726    .1343382
 _Isector_11 |          0  (omitted)
 _Isector_12 |  -.2283581   .0643966    -3.55   0.000    -.3546636   -.1020527
 _Isector_13 |   .0157287   .0933266     0.17   0.866    -.1673192    .1987765
 _Isector_14 |          0  (omitted)
 _Isector_15 |          0  (omitted)
 _Isector_16 |  -.1873403   .1413797    -1.33   0.185    -.4646381    .0899574
 _Isector_17 |   -.012071   .2474232    -0.05   0.961    -.4973592    .4732172
 _Isector_18 |  -.1478809   .1188104    -1.24   0.213     -.380912    .0851501
 _Isector_19 |  -.3662275   .3168858    -1.16   0.248    -.9877573    .2553023
 _Isector_20 |   .0244935   .1262678     0.19   0.846    -.2231642    .2721511
 _Isector_21 |  -.8443719    .321217    -2.63   0.009    -1.474397    -.214347
 _Isector_22 |  -.1325751   .1620588    -0.82   0.413    -.4504322    .1852821
 _Isector_23 |          0  (omitted)
 _Isector_24 |   .1335587   .1527108     0.87   0.382    -.1659634    .4330809
 _Isector_25 |   .1434518   .1001115     1.43   0.152    -.0529038    .3398074
 _Isector_26 |  -.0132353   .0583723    -0.23   0.821    -.1277249    .1012544
 _Isector_27 |   .1202495   .1926913     0.62   0.533    -.2576893    .4981882
 _Isector_28 |          0  (omitted)
 _Isector_29 |  -.1510184   .1084079    -1.39   0.164    -.3636463    .0616095
 _Isector_30 |          0  (omitted)
 _Isector_31 |          0  (omitted)
 _Isector_32 |          0  (omitted)
 _Isector_33 |          0  (omitted)
 _Isector_34 |          0  (omitted)
 _Isector_35 |   -.460039   .2690498    -1.71   0.087     -.987745    .0676669
 _Isector_36 |          0  (omitted)
 _Isector_37 |          0  (omitted)
 _Isector_38 |   .1960092   .1197964     1.64   0.102    -.0389558    .4309742
 _Isector_39 |   .0635462   .1300207     0.49   0.625    -.1914723    .3185647
 _Isector_40 |  -.3103397   .2255928    -1.38   0.169    -.7528103    .1321309
 _Isector_41 |  -.0547406   .1195738    -0.46   0.647    -.2892688    .1797877
 _Isector_42 |   .0745746   .0614003     1.21   0.225    -.0458541    .1950033
 _Isector_43 |          0  (omitted)
 _Isector_44 |          0  (omitted)
 _Isector_45 |          0  (omitted)
 _Isector_46 |          0  (omitted)
   _Ieduc_32 |          0  (omitted)
   _Ieduc_33 |          0  (omitted)
   _Ieduc_35 |  -.3894306    .042019    -9.27   0.000    -.4718454   -.3070158
   _Ieduc_36 |          0  (omitted)
   _Ieduc_37 |          0  (omitted)
   _Ieduc_38 |          0  (omitted)
   _Ieduc_53 |          0  (omitted)
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |  -.2591114   .5003871    -0.52   0.605    -1.240555    .7223321
   _Ieduc_56 |          0  (omitted)
   _Ieduc_57 |          0  (omitted)
   _Ieduc_63 |          0  (omitted)
   _Ieduc_64 |          0  (omitted)
   _Ieduc_65 |   .0872642   .3789294     0.23   0.818     -.655956    .8304844
   _Ieduc_66 |          0  (omitted)
   _Ieduc_72 |          0  (omitted)
   _Ieduc_73 |          0  (omitted)
   _Ieduc_74 |  -.0854161   .0424803    -2.01   0.045    -.1687356   -.0020966
   _Ieduc_75 |   .3821477   .3051627     1.25   0.211    -.2163888    .9806842
   _Ieduc_76 |          0  (omitted)
   _Ieduc_77 |          0  (omitted)
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |          0  (omitted)
   _Ieduc_85 |   .4924336   .3207184     1.54   0.125    -.1366135    1.121481
   _Ieduc_86 |          0  (omitted)
   _Ieduc_87 |          0  (omitted)
   _Ieduc_99 |          0  (omitted)
   _Inuts2_2 |   .0587509   .1107288     0.53   0.596    -.1584291    .2759308
   _Inuts2_3 |   .0146889   .0971571     0.15   0.880     -.175872    .2052498
   _Inuts2_4 |   .0724487   .1252597     0.58   0.563    -.1732318    .3181292
   _Inuts2_5 |  -.0662919   .0438433    -1.51   0.131    -.1522848    .0197009
   _Inuts2_6 |          0  (omitted)
        pats |   .0267344   .0252661     1.06   0.290    -.0228216    .0762905
     lagpats |   .0041393   .0361499     0.11   0.909    -.0667639    .0750425
     lagpat2 |  -.0420254   .0474906    -0.88   0.376     -.135172    .0511212
     lagpat3 |    .009221   .0396501     0.23   0.816    -.0685474    .0869895
     lagpat4 |   .0264104   .0341176     0.77   0.439    -.0405067    .0933275
     lagpat5 |   .0427362     .04658     0.92   0.359    -.0486244    .1340968
     lagpat6 |   .0426004   .0384515     1.11   0.268    -.0328172    .1180181
     lagpat7 |  -.0077224   .0304403    -0.25   0.800     -.067427    .0519822
       _cons |   5.737544   2.212763     2.59   0.010     1.397501    10.07759
-------------+----------------------------------------------------------------
     sigma_u |   .6802075
     sigma_e |  .39477604
         rho |  .74803481   (fraction of variance due to u_i)
------------------------------------------------------------------------------

. xi: reg D.(logwage $expl_1), vce(cluster id);
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity

Linear regression                                      Number of obs =   13419
                                                       F( 58,  2076) =       .
                                                       Prob > F      =       .
                                                       R-squared     =  0.0617
                                                       Root MSE      =  .39236

                                  (Std. Err. adjusted for 2077 clusters in id)
------------------------------------------------------------------------------
             |               Robust
   D.logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |
         D1. |          0  (omitted)
             |
        age2 |
         D1. |  -.0014161   .0001776    -7.98   0.000    -.0017643   -.0010679
             |
      tenure |
         D1. |   .0018308   .0016334     1.12   0.262    -.0013725     .005034
             |
      female |
         D1. |          0  (omitted)
             |
      months |
         D1. |   .0870123   .0087092     9.99   0.000     .0699327     .104092
             |
         emp |
         D1. |   .0008508   .0003358     2.53   0.011     .0001922    .0015094
             |
_Ivuosi_1992 |
         D1. |  -.0449234   .0098249    -4.57   0.000    -.0641911   -.0256558
             |
_Ivuosi_1993 |
         D1. |  -.0829982   .0113305    -7.33   0.000    -.1052185   -.0607778
             |
_Ivuosi_1994 |
         D1. |  -.0777308   .0117248    -6.63   0.000    -.1007245   -.0547372
             |
_Ivuosi_1995 |
         D1. |  -.0630494   .0129839    -4.86   0.000    -.0885122   -.0375866
             |
_Ivuosi_1996 |
         D1. |  -.0717169   .0141139    -5.08   0.000    -.0993958   -.0440381
             |
_Ivuosi_1997 |
         D1. |  -.0594921   .0138203    -4.30   0.000    -.0865951   -.0323891
             |
_Ivuosi_1998 |
         D1. |  -.0077175   .0141649    -0.54   0.586    -.0354964    .0200614
             |
_Ivuosi_1999 |
         D1. |          0  (omitted)
             |
  _Isector_2 |
         D1. |   .0156177    .089414     0.17   0.861    -.1597328    .1909682
             |
  _Isector_3 |
         D1. |          0  (omitted)
             |
  _Isector_4 |
         D1. |   .1131271   .1618007     0.70   0.485    -.2041814    .4304356
             |
  _Isector_5 |
         D1. |  -.0763761   .0270474    -2.82   0.005    -.1294189   -.0233332
             |
  _Isector_6 |
         D1. |          0  (omitted)
             |
  _Isector_7 |
         D1. |          0  (omitted)
             |
  _Isector_8 |
         D1. |          0  (omitted)
             |
  _Isector_9 |
         D1. |   .0005087   .1229574     0.00   0.997     -.240624    .2416413
             |
 _Isector_10 |
         D1. |  -.0693958   .0899937    -0.77   0.441    -.2458831    .1070914
             |
 _Isector_11 |
         D1. |          0  (omitted)
             |
 _Isector_12 |
         D1. |  -.0562175   .0654687    -0.86   0.391    -.1846086    .0721737
             |
 _Isector_13 |
         D1. |  -.0411043   .0565763    -0.73   0.468    -.1520565    .0698479
             |
 _Isector_14 |
         D1. |   .0594786   .0817874     0.73   0.467    -.1009153    .2198726
             |
 _Isector_15 |
         D1. |   .1625466   .1681426     0.97   0.334     -.167199    .4922923
             |
 _Isector_16 |
         D1. |  -.1160547   .0773688    -1.50   0.134    -.2677831    .0356738
             |
 _Isector_17 |
         D1. |    .018789   .0616331     0.30   0.761      -.10208    .1396581
             |
 _Isector_18 |
         D1. |  -.0295038   .0570217    -0.52   0.605    -.1413294    .0823218
             |
 _Isector_19 |
         D1. |  -.0860435   .0710105    -1.21   0.226    -.2253028    .0532158
             |
 _Isector_20 |
         D1. |  -.0599979   .0700095    -0.86   0.392     -.197294    .0772983
             |
 _Isector_21 |
         D1. |  -.1023557   .0828437    -1.24   0.217     -.264821    .0601096
             |
 _Isector_22 |
         D1. |  -.0293271   .0578134    -0.51   0.612    -.1427054    .0840512
             |
 _Isector_23 |
         D1. |  -.1027228    .116224    -0.88   0.377    -.3306506     .125205
             |
 _Isector_24 |
         D1. |   .0301072   .1536808     0.20   0.845    -.2712774    .3314918
             |
 _Isector_25 |
         D1. |  -.1206096    .092271    -1.31   0.191    -.3015629    .0603438
             |
 _Isector_26 |
         D1. |   .0256827   .1641854     0.16   0.876    -.2963024    .3476678
             |
 _Isector_27 |
         D1. |   .1418478   .1945263     0.73   0.466    -.2396392    .5233348
             |
 _Isector_28 |
         D1. |   .0151602   .1178306     0.13   0.898    -.2159183    .2462387
             |
 _Isector_29 |
         D1. |  -.1029189   .0580582    -1.77   0.076    -.2167772    .0109395
             |
 _Isector_30 |
         D1. |  -.0530674   .0810487    -0.65   0.513    -.2120126    .1058778
             |
 _Isector_31 |
         D1. |   -.562981   .0981333    -5.74   0.000    -.7554308   -.3705311
             |
 _Isector_32 |
         D1. |   -.281608   .1126506    -2.50   0.013    -.5025278   -.0606882
             |
 _Isector_33 |
         D1. |  -.2946025   .1149379    -2.56   0.010     -.520008    -.069197
             |
 _Isector_34 |
         D1. |   -.617606   .0834835    -7.40   0.000    -.7813261   -.4538859
             |
 _Isector_35 |
         D1. |   .0192056   .1031549     0.19   0.852    -.1830921    .2215034
             |
 _Isector_36 |
         D1. |   1.896401   .0253595    74.78   0.000     1.846668    1.946133
             |
 _Isector_37 |
         D1. |          0  (omitted)
             |
 _Isector_38 |
         D1. |  -.1849394   .1657157    -1.12   0.265    -.5099257    .1400469
             |
 _Isector_39 |
         D1. |  -.1830364   .1650798    -1.11   0.268    -.5067757    .1407029
             |
 _Isector_40 |
         D1. |  -.0189743   .0954523    -0.20   0.842    -.2061665    .1682178
             |
 _Isector_41 |
         D1. |  -.0779796    .076263    -1.02   0.307    -.2275395    .0715804
             |
 _Isector_42 |
         D1. |   -.049433   .0503737    -0.98   0.327    -.1482213    .0493554
             |
 _Isector_43 |
         D1. |  -.2985978   .0890365    -3.35   0.001     -.473208   -.1239876
             |
 _Isector_44 |
         D1. |   1.231642   .6022092     2.05   0.041     .0506451    2.412639
             |
 _Isector_45 |
         D1. |   .2349099    .142129     1.65   0.099    -.0438202      .51364
             |
 _Isector_46 |
         D1. |   -.102388   .0687825    -1.49   0.137    -.2372779     .032502
             |
   _Ieduc_32 |
         D1. |          0  (omitted)
             |
   _Ieduc_33 |
         D1. |          0  (omitted)
             |
   _Ieduc_35 |
         D1. |  -.2744466   .1033693    -2.66   0.008    -.4771649   -.0717283
             |
   _Ieduc_36 |
         D1. |          0  (omitted)
             |
   _Ieduc_37 |
         D1. |          0  (omitted)
             |
   _Ieduc_38 |
         D1. |          0  (omitted)
             |
   _Ieduc_53 |
         D1. |          0  (omitted)
             |
   _Ieduc_54 |
         D1. |          0  (omitted)
             |
   _Ieduc_55 |
         D1. |   .0458435   .0830082     0.55   0.581    -.1169444    .2086315
             |
   _Ieduc_56 |
         D1. |          0  (omitted)
             |
   _Ieduc_57 |
         D1. |          0  (omitted)
             |
   _Ieduc_63 |
         D1. |          0  (omitted)
             |
   _Ieduc_64 |
         D1. |   .2627501   .0864766     3.04   0.002     .0931602    .4323399
             |
   _Ieduc_65 |
         D1. |   .2065072   .0600531     3.44   0.001     .0887366    .3242778
             |
   _Ieduc_66 |
         D1. |   .2136091   .0564213     3.79   0.000     .1029609    .3242573
             |
   _Ieduc_72 |
         D1. |          0  (omitted)
             |
   _Ieduc_73 |
         D1. |          0  (omitted)
             |
   _Ieduc_74 |
         D1. |   .2160208   .0550212     3.93   0.000     .1081183    .3239232
             |
   _Ieduc_75 |
         D1. |   .2702863   .0411343     6.57   0.000     .1896174    .3509551
             |
   _Ieduc_76 |
         D1. |  -.0310359   .0119547    -2.60   0.009    -.0544803   -.0075914
             |
   _Ieduc_77 |
         D1. |   .1391268     .05498     2.53   0.011     .0313051    .2469484
             |
   _Ieduc_83 |
         D1. |          0  (omitted)
             |
   _Ieduc_84 |
         D1. |    .225593   .0557393     4.05   0.000     .1162823    .3349037
             |
   _Ieduc_85 |
         D1. |   .3605683   .0718833     5.02   0.000     .2195974    .5015392
             |
   _Ieduc_86 |
         D1. |          0  (omitted)
             |
   _Ieduc_87 |
         D1. |   .1392119   .0566215     2.46   0.014      .028171    .2502528
             |
   _Ieduc_99 |
         D1. |   .2453111   .1002948     2.45   0.015     .0486222    .4419999
             |
   _Inuts2_2 |
         D1. |   .0075021   .0666204     0.11   0.910    -.1231476    .1381519
             |
   _Inuts2_3 |
         D1. |   .0390519   .0526539     0.74   0.458    -.0642081    .1423119
             |
   _Inuts2_4 |
         D1. |   .0980867   .1101171     0.89   0.373    -.1178648    .3140381
             |
   _Inuts2_5 |
         D1. |  -.1192241   .0655853    -1.82   0.069    -.2478438    .0093956
             |
   _Inuts2_6 |
         D1. |   .0566902    .012833     4.42   0.000     .0315233    .0818572
             |
        pats |
         D1. |   .0128963   .0060788     2.12   0.034     .0009752    .0248174
             |
       _cons |   .1658034   .0157225    10.55   0.000     .1349698    .1966369
------------------------------------------------------------------------------

. xi: reg D.(logwage $expl_2), vce(cluster id);
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity

Linear regression                                      Number of obs =   11736
                                                       F( 57,  2043) =       .
                                                       Prob > F      =       .
                                                       R-squared     =  0.0196
                                                       Root MSE      =  .38085

                                  (Std. Err. adjusted for 2044 clusters in id)
------------------------------------------------------------------------------
             |               Robust
   D.logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |
         D1. |          0  (omitted)
             |
        age2 |
         D1. |  -.0011425   .0001922    -5.94   0.000    -.0015195   -.0007655
             |
      tenure |
         D1. |   .0026318   .0016334     1.61   0.107    -.0005714     .005835
             |
      female |
         D1. |          0  (omitted)
             |
      months |
         D1. |   .0278081   .0112419     2.47   0.013     .0057613    .0498548
             |
         emp |
         D1. |   .0009727   .0003433     2.83   0.005     .0002994     .001646
             |
_Ivuosi_1992 |
         D1. |          0  (omitted)
             |
_Ivuosi_1993 |
         D1. |  -.0362114   .0088602    -4.09   0.000    -.0535873   -.0188355
             |
_Ivuosi_1994 |
         D1. |  -.0321981   .0100971    -3.19   0.001    -.0519998   -.0123963
             |
_Ivuosi_1995 |
         D1. |  -.0267818    .011919    -2.25   0.025    -.0501565   -.0034072
             |
_Ivuosi_1996 |
         D1. |  -.0396472   .0133436    -2.97   0.003    -.0658157   -.0134786
             |
_Ivuosi_1997 |
         D1. |  -.0379926    .013368    -2.84   0.005     -.064209   -.0117762
             |
_Ivuosi_1998 |
         D1. |   .0105509    .014185     0.74   0.457    -.0172676    .0383695
             |
_Ivuosi_1999 |
         D1. |          0  (omitted)
             |
  _Isector_2 |
         D1. |   .1108814   .1002907     1.11   0.269    -.0858013    .3075642
             |
  _Isector_3 |
         D1. |          0  (omitted)
             |
  _Isector_4 |
         D1. |   .1506616    .180566     0.83   0.404     -.203451    .5047742
             |
  _Isector_5 |
         D1. |   -.104529   .0272507    -3.84   0.000    -.1579711   -.0510869
             |
  _Isector_6 |
         D1. |          0  (omitted)
             |
  _Isector_7 |
         D1. |          0  (omitted)
             |
  _Isector_8 |
         D1. |          0  (omitted)
             |
  _Isector_9 |
         D1. |   .0015137   .1521227     0.01   0.992     -.296818    .2998454
             |
 _Isector_10 |
         D1. |  -.0910264   .0968958    -0.94   0.348    -.2810512    .0989984
             |
 _Isector_11 |
         D1. |          0  (omitted)
             |
 _Isector_12 |
         D1. |  -.0839285   .0673119    -1.25   0.213    -.2159357    .0480787
             |
 _Isector_13 |
         D1. |  -.0559075   .0616307    -0.91   0.364    -.1767732    .0649581
             |
 _Isector_14 |
         D1. |   .0591295   .0822133     0.72   0.472    -.1021011    .2203601
             |
 _Isector_15 |
         D1. |   .2134397   .1802162     1.18   0.236    -.1399868    .5668663
             |
 _Isector_16 |
         D1. |  -.1429159   .0856368    -1.67   0.095    -.3108604    .0250285
             |
 _Isector_17 |
         D1. |   .0024776   .0632386     0.04   0.969    -.1215412    .1264964
             |
 _Isector_18 |
         D1. |  -.0354011    .057456    -0.62   0.538    -.1480795    .0772773
             |
 _Isector_19 |
         D1. |   -.112811   .0705437    -1.60   0.110     -.251156     .025534
             |
 _Isector_20 |
         D1. |   -.074526   .0682367    -1.09   0.275    -.2083467    .0592946
             |
 _Isector_21 |
         D1. |   -.131742   .0841573    -1.57   0.118    -.2967851    .0333011
             |
 _Isector_22 |
         D1. |   -.073624   .0591079    -1.25   0.213    -.1895421     .042294
             |
 _Isector_23 |
         D1. |  -.1273708   .1160763    -1.10   0.273     -.355011    .1002693
             |
 _Isector_24 |
         D1. |   .0576722   .1806403     0.32   0.750    -.2965863    .4119306
             |
 _Isector_25 |
         D1. |  -.0469103   .0682973    -0.69   0.492      -.18085    .0870293
             |
 _Isector_26 |
         D1. |   .1453255   .1440308     1.01   0.313     -.137137     .427788
             |
 _Isector_27 |
         D1. |    .239712   .2493944     0.96   0.337    -.2493817    .7288058
             |
 _Isector_28 |
         D1. |   .2210544   .2518308     0.88   0.380    -.2728175    .7149263
             |
 _Isector_29 |
         D1. |  -.1100612   .0573756    -1.92   0.055    -.2225821    .0024596
             |
 _Isector_30 |
         D1. |  -.0694757   .0802249    -0.87   0.387    -.2268068    .0878554
             |
 _Isector_31 |
         D1. |  -.5405471   .1077184    -5.02   0.000    -.7517963   -.3292978
             |
 _Isector_32 |
         D1. |  -.1110468   .0418127    -2.66   0.008    -.1930467   -.0290469
             |
 _Isector_33 |
         D1. |          0  (omitted)
             |
 _Isector_34 |
         D1. |  -.6257161    .084355    -7.42   0.000    -.7911468   -.4602855
             |
 _Isector_35 |
         D1. |   .0217091   .1022016     0.21   0.832     -.178721    .2221393
             |
 _Isector_36 |
         D1. |          0  (omitted)
             |
 _Isector_37 |
         D1. |          0  (omitted)
             |
 _Isector_38 |
         D1. |  -.1489104   .1450847    -1.03   0.305    -.4334398     .135619
             |
 _Isector_39 |
         D1. |  -.2015561   .1697448    -1.19   0.235     -.534447    .1313349
             |
 _Isector_40 |
         D1. |  -.0180195   .0895243    -0.20   0.840    -.1935879    .1575489
             |
 _Isector_41 |
         D1. |  -.1160029   .0732222    -1.58   0.113    -.2596008     .027595
             |
 _Isector_42 |
         D1. |  -.0703182   .0489656    -1.44   0.151    -.1663459    .0257095
             |
 _Isector_43 |
         D1. |          0  (omitted)
             |
 _Isector_44 |
         D1. |   1.209492   .5993151     2.02   0.044     .0341602    2.384825
             |
 _Isector_45 |
         D1. |   .4336942   .2169198     2.00   0.046     .0082871    .8591012
             |
 _Isector_46 |
         D1. |  -.0963703   .0772084    -1.25   0.212    -.2477857     .055045
             |
   _Ieduc_32 |
         D1. |          0  (omitted)
             |
   _Ieduc_33 |
         D1. |          0  (omitted)
             |
   _Ieduc_35 |
         D1. |  -.3261687   .1204507    -2.71   0.007    -.5623877   -.0899496
             |
   _Ieduc_36 |
         D1. |          0  (omitted)
             |
   _Ieduc_37 |
         D1. |          0  (omitted)
             |
   _Ieduc_38 |
         D1. |          0  (omitted)
             |
   _Ieduc_53 |
         D1. |          0  (omitted)
             |
   _Ieduc_54 |
         D1. |          0  (omitted)
             |
   _Ieduc_55 |
         D1. |  -.0268343   .1021481    -0.26   0.793    -.2271595     .173491
             |
   _Ieduc_56 |
         D1. |          0  (omitted)
             |
   _Ieduc_57 |
         D1. |          0  (omitted)
             |
   _Ieduc_63 |
         D1. |          0  (omitted)
             |
   _Ieduc_64 |
         D1. |   .1849969   .0852129     2.17   0.030     .0178837    .3521101
             |
   _Ieduc_65 |
         D1. |   .1106575   .0744108     1.49   0.137    -.0352715    .2565865
             |
   _Ieduc_66 |
         D1. |   .1464834   .0640199     2.29   0.022     .0209322    .2720346
             |
   _Ieduc_72 |
         D1. |          0  (omitted)
             |
   _Ieduc_73 |
         D1. |          0  (omitted)
             |
   _Ieduc_74 |
         D1. |   .1575066    .062409     2.52   0.012     .0351147    .2798985
             |
   _Ieduc_75 |
         D1. |   .1661194   .0577188     2.88   0.004     .0529256    .2793131
             |
   _Ieduc_76 |
         D1. |          0  (omitted)
             |
   _Ieduc_77 |
         D1. |   .0800654   .0623552     1.28   0.199    -.0422211    .2023518
             |
   _Ieduc_83 |
         D1. |          0  (omitted)
             |
   _Ieduc_84 |
         D1. |     .15762   .0652207     2.42   0.016      .029714     .285526
             |
   _Ieduc_85 |
         D1. |    .275279   .0839593     3.28   0.001     .1106242    .4399337
             |
   _Ieduc_86 |
         D1. |          0  (omitted)
             |
   _Ieduc_87 |
         D1. |   .0837778   .0639724     1.31   0.190    -.0416801    .2092357
             |
   _Ieduc_99 |
         D1. |   .1506985   .0973102     1.55   0.122    -.0401391    .3415361
             |
   _Inuts2_2 |
         D1. |    .028932   .0779024     0.37   0.710    -.1238444    .1817084
             |
   _Inuts2_3 |
         D1. |   .0434797   .0600107     0.72   0.469    -.0742088    .1611682
             |
   _Inuts2_4 |
         D1. |   .0095392   .0735158     0.13   0.897    -.1346344    .1537129
             |
   _Inuts2_5 |
         D1. |  -.0819498   .0616879    -1.33   0.184    -.2029275    .0390279
             |
   _Inuts2_6 |
         D1. |   .0627859   .0127221     4.94   0.000     .0378362    .0877356
             |
        pats |
         D1. |   .0195158    .006835     2.86   0.004     .0061114    .0329201
             |
     lagpats |
         D1. |   .0122836   .0067928     1.81   0.071    -.0010381    .0256052
             |
       _cons |   .1405232   .0172539     8.14   0.000     .1066861    .1743604
------------------------------------------------------------------------------

.  /* TABLE 2 */
> xi: reg D.(logwage $expl_3), vce(cluster id);
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity

Linear regression                                      Number of obs =   10063
                                                       F( 55,  2003) =       .
                                                       Prob > F      =       .
                                                       R-squared     =  0.0191
                                                       Root MSE      =  .38378

                                  (Std. Err. adjusted for 2004 clusters in id)
------------------------------------------------------------------------------
             |               Robust
   D.logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |
         D1. |          0  (omitted)
             |
        age2 |
         D1. |  -.0011157   .0002278    -4.90   0.000    -.0015625   -.0006689
             |
      tenure |
         D1. |    .002992   .0016153     1.85   0.064    -.0001759    .0061598
             |
      female |
         D1. |          0  (omitted)
             |
      months |
         D1. |   .0224909    .009807     2.29   0.022     .0032578     .041724
             |
         emp |
         D1. |    .001087   .0003672     2.96   0.003     .0003668    .0018071
             |
_Ivuosi_1992 |
         D1. |          0  (omitted)
             |
_Ivuosi_1993 |
         D1. |          0  (omitted)
             |
_Ivuosi_1994 |
         D1. |  -.0013397   .0082047    -0.16   0.870    -.0174303     .014751
             |
_Ivuosi_1995 |
         D1. |   -.003128     .01035    -0.30   0.763    -.0234259    .0171699
             |
_Ivuosi_1996 |
         D1. |   -.022983   .0121448    -1.89   0.059    -.0468007    .0008348
             |
_Ivuosi_1997 |
         D1. |  -.0263255   .0125368    -2.10   0.036     -.050912   -.0017389
             |
_Ivuosi_1998 |
         D1. |   .0175213   .0137633     1.27   0.203    -.0094707    .0445132
             |
_Ivuosi_1999 |
         D1. |          0  (omitted)
             |
  _Isector_2 |
         D1. |   .0525337   .0925039     0.57   0.570    -.1288803    .2339477
             |
  _Isector_3 |
         D1. |          0  (omitted)
             |
  _Isector_4 |
         D1. |   .1739961   .2264999     0.77   0.442    -.2702041    .6181962
             |
  _Isector_5 |
         D1. |  -.1155836   .0281317    -4.11   0.000    -.1707539   -.0604132
             |
  _Isector_6 |
         D1. |          0  (omitted)
             |
  _Isector_7 |
         D1. |          0  (omitted)
             |
  _Isector_8 |
         D1. |          0  (omitted)
             |
  _Isector_9 |
         D1. |    .062957   .1683226     0.37   0.708    -.2671488    .3930628
             |
 _Isector_10 |
         D1. |  -.0788242   .1025175    -0.77   0.442    -.2798763    .1222278
             |
 _Isector_11 |
         D1. |          0  (omitted)
             |
 _Isector_12 |
         D1. |  -.1142031   .0720586    -1.58   0.113    -.2555209    .0271146
             |
 _Isector_13 |
         D1. |  -.0426755   .0696292    -0.61   0.540    -.1792288    .0938777
             |
 _Isector_14 |
         D1. |   .0616574   .0882045     0.70   0.485    -.1113247    .2346395
             |
 _Isector_15 |
         D1. |   .2395591    .240633     1.00   0.320    -.2323581    .7114763
             |
 _Isector_16 |
         D1. |  -.0926582   .0932677    -0.99   0.321    -.2755701    .0902538
             |
 _Isector_17 |
         D1. |   -.042247   .0755275    -0.56   0.576    -.1903676    .1058737
             |
 _Isector_18 |
         D1. |  -.0394566   .0643059    -0.61   0.540    -.1655701    .0866569
             |
 _Isector_19 |
         D1. |  -.1268323   .0881473    -1.44   0.150    -.2997023    .0460377
             |
 _Isector_20 |
         D1. |  -.0791251   .0815361    -0.97   0.332    -.2390295    .0807792
             |
 _Isector_21 |
         D1. |  -.1472029   .1127745    -1.31   0.192    -.3683705    .0739647
             |
 _Isector_22 |
         D1. |  -.0745272   .0704037    -1.06   0.290    -.2125994    .0635449
             |
 _Isector_23 |
         D1. |  -.1723082   .1254686    -1.37   0.170    -.4183708    .0737544
             |
 _Isector_24 |
         D1. |   .0795736   .2464739     0.32   0.747    -.4037985    .5629457
             |
 _Isector_25 |
         D1. |    -.03338   .0842164    -0.40   0.692     -.198541    .1317809
             |
 _Isector_26 |
         D1. |  -.0072016   .0682507    -0.11   0.916    -.1410513    .1266482
             |
 _Isector_27 |
         D1. |   .2611901   .2713648     0.96   0.336    -.2709966    .7933769
             |
 _Isector_28 |
         D1. |   .6485823    .114285     5.68   0.000     .4244524    .8727122
             |
 _Isector_29 |
         D1. |  -.1059253   .0668376    -1.58   0.113    -.2370037    .0251531
             |
 _Isector_30 |
         D1. |  -.0509061   .0884448    -0.58   0.565    -.2243596    .1225474
             |
 _Isector_31 |
         D1. |  -.5410217   .1472497    -3.67   0.000    -.8298003   -.2522432
             |
 _Isector_32 |
         D1. |  -.1181818   .0429367    -2.75   0.006    -.2023871   -.0339766
             |
 _Isector_33 |
         D1. |          0  (omitted)
             |
 _Isector_34 |
         D1. |  -.6383776   .1131712    -5.64   0.000    -.8603232   -.4164319
             |
 _Isector_35 |
         D1. |     .01187   .1181604     0.10   0.920    -.2198602    .2436002
             |
 _Isector_36 |
         D1. |          0  (omitted)
             |
 _Isector_37 |
         D1. |          0  (omitted)
             |
 _Isector_38 |
         D1. |  -.0025652    .070121    -0.04   0.971    -.1400829    .1349525
             |
 _Isector_39 |
         D1. |  -.2385179   .2239244    -1.07   0.287    -.6776669    .2006312
             |
 _Isector_40 |
         D1. |  -.0364664   .0975621    -0.37   0.709    -.2278003    .1548675
             |
 _Isector_41 |
         D1. |  -.0982867   .0786096    -1.25   0.211    -.2524519    .0558785
             |
 _Isector_42 |
         D1. |  -.0619324   .0558768    -1.11   0.268    -.1715151    .0476502
             |
 _Isector_43 |
         D1. |          0  (omitted)
             |
 _Isector_44 |
         D1. |   1.223264   .5961578     2.05   0.040     .0541095    2.392418
             |
 _Isector_45 |
         D1. |   .4051258   .2262297     1.79   0.073    -.0385443     .848796
             |
 _Isector_46 |
         D1. |  -.0154189   .0905616    -0.17   0.865    -.1930236    .1621858
             |
   _Ieduc_32 |
         D1. |          0  (omitted)
             |
   _Ieduc_33 |
         D1. |          0  (omitted)
             |
   _Ieduc_35 |
         D1. |   -.302673   .1325038    -2.28   0.022    -.5625327   -.0428134
             |
   _Ieduc_36 |
         D1. |          0  (omitted)
             |
   _Ieduc_37 |
         D1. |          0  (omitted)
             |
   _Ieduc_38 |
         D1. |          0  (omitted)
             |
   _Ieduc_53 |
         D1. |          0  (omitted)
             |
   _Ieduc_54 |
         D1. |          0  (omitted)
             |
   _Ieduc_55 |
         D1. |  -.0616325   .1188147    -0.52   0.604    -.2946459    .1713808
             |
   _Ieduc_56 |
         D1. |          0  (omitted)
             |
   _Ieduc_57 |
         D1. |          0  (omitted)
             |
   _Ieduc_63 |
         D1. |          0  (omitted)
             |
   _Ieduc_64 |
         D1. |   .2178414   .1044342     2.09   0.037     .0130304    .4226525
             |
   _Ieduc_65 |
         D1. |    .103866   .0929572     1.12   0.264     -.078437     .286169
             |
   _Ieduc_66 |
         D1. |    .193065   .0901045     2.14   0.032     .0163567    .3697733
             |
   _Ieduc_72 |
         D1. |          0  (omitted)
             |
   _Ieduc_73 |
         D1. |          0  (omitted)
             |
   _Ieduc_74 |
         D1. |   .2063612   .0889199     2.32   0.020      .031976    .3807464
             |
   _Ieduc_75 |
         D1. |    .169553   .0914768     1.85   0.064    -.0098466    .3489526
             |
   _Ieduc_76 |
         D1. |          0  (omitted)
             |
   _Ieduc_77 |
         D1. |          0  (omitted)
             |
   _Ieduc_83 |
         D1. |          0  (omitted)
             |
   _Ieduc_84 |
         D1. |   .2035627   .0979053     2.08   0.038     .0115559    .3955695
             |
   _Ieduc_85 |
         D1. |   .2911096   .1127944     2.58   0.010     .0699031    .5123162
             |
   _Ieduc_86 |
         D1. |          0  (omitted)
             |
   _Ieduc_87 |
         D1. |          0  (omitted)
             |
   _Ieduc_99 |
         D1. |   .1596327   .1067145     1.50   0.135    -.0496504    .3689159
             |
   _Inuts2_2 |
         D1. |  -.0238036   .0446912    -0.53   0.594    -.1114496    .0638425
             |
   _Inuts2_3 |
         D1. |   .0484652   .0446055     1.09   0.277    -.0390128    .1359432
             |
   _Inuts2_4 |
         D1. |  -.0018931   .0716636    -0.03   0.979    -.1424361    .1386499
             |
   _Inuts2_5 |
         D1. |   -.120075    .064553    -1.86   0.063    -.2466731     .006523
             |
   _Inuts2_6 |
         D1. |   .0678633   .0129057     5.26   0.000     .0425532    .0931733
             |
        pats |
         D1. |   .0197291   .0076656     2.57   0.010     .0046956    .0347626
             |
     lagpats |
         D1. |    .008456   .0087081     0.97   0.332     -.008622     .025534
             |
     lagpat2 |
         D1. |  -.0060062   .0086071    -0.70   0.485    -.0228859    .0108735
             |
       _cons |   .1417583   .0206777     6.86   0.000     .1012062    .1823104
------------------------------------------------------------------------------

. xi: reg D.(logwage $expl_4), vce(cluster id);
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity

Linear regression                                      Number of obs =    8373
                                                       F( 53,  1923) =       .
                                                       Prob > F      =       .
                                                       R-squared     =  0.0222
                                                       Root MSE      =  .38948

                                  (Std. Err. adjusted for 1924 clusters in id)
------------------------------------------------------------------------------
             |               Robust
   D.logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |
         D1. |          0  (omitted)
             |
        age2 |
         D1. |  -.0011208   .0002432    -4.61   0.000    -.0015977   -.0006438
             |
      tenure |
         D1. |   .0030041   .0017292     1.74   0.082    -.0003872    .0063954
             |
      female |
         D1. |          0  (omitted)
             |
      months |
         D1. |   .0252458   .0089625     2.82   0.005     .0076685     .042823
             |
         emp |
         D1. |   .0012298   .0004207     2.92   0.004     .0004047    .0020549
             |
_Ivuosi_1992 |
         D1. |          0  (omitted)
             |
_Ivuosi_1993 |
         D1. |          0  (omitted)
             |
_Ivuosi_1994 |
         D1. |          0  (omitted)
             |
_Ivuosi_1995 |
         D1. |  -.0041149   .0081422    -0.51   0.613    -.0200835    .0118536
             |
_Ivuosi_1996 |
         D1. |  -.0264556   .0108669    -2.43   0.015    -.0477678   -.0051434
             |
_Ivuosi_1997 |
         D1. |  -.0278489    .012003    -2.32   0.020    -.0513891   -.0043088
             |
_Ivuosi_1998 |
         D1. |   .0144516   .0135961     1.06   0.288    -.0122132    .0411163
             |
_Ivuosi_1999 |
         D1. |          0  (omitted)
             |
  _Isector_2 |
         D1. |   .0343709   .1035738     0.33   0.740     -.168758    .2374997
             |
  _Isector_3 |
         D1. |          0  (omitted)
             |
  _Isector_4 |
         D1. |   .3701174    .323665     1.14   0.253    -.2646539    1.004889
             |
  _Isector_5 |
         D1. |  -.1189202   .0300966    -3.95   0.000    -.1779456   -.0598948
             |
  _Isector_6 |
         D1. |          0  (omitted)
             |
  _Isector_7 |
         D1. |          0  (omitted)
             |
  _Isector_8 |
         D1. |          0  (omitted)
             |
  _Isector_9 |
         D1. |   .0860817   .2004127     0.43   0.668    -.3069673    .4791307
             |
 _Isector_10 |
         D1. |  -.0932638   .1396763    -0.67   0.504    -.3671967    .1806692
             |
 _Isector_11 |
         D1. |          0  (omitted)
             |
 _Isector_12 |
         D1. |   -.129521   .0882845    -1.47   0.143    -.3026645    .0436224
             |
 _Isector_13 |
         D1. |  -.0403303   .0858999    -0.47   0.639     -.208797    .1281364
             |
 _Isector_14 |
         D1. |   .0763144   .1137281     0.67   0.502     -.146729    .2993578
             |
 _Isector_15 |
         D1. |   .3230977   .3236163     1.00   0.318     -.311578    .9577735
             |
 _Isector_16 |
         D1. |   -.095463   .1115691    -0.86   0.392    -.3142721    .1233462
             |
 _Isector_17 |
         D1. |   -.059065   .0906229    -0.65   0.515    -.2367945    .1186644
             |
 _Isector_18 |
         D1. |  -.0476279   .0814005    -0.59   0.559    -.2072704    .1120147
             |
 _Isector_19 |
         D1. |  -.1395519   .1017403    -1.37   0.170    -.3390848    .0599811
             |
 _Isector_20 |
         D1. |  -.0811135   .0967092    -0.84   0.402    -.2707795    .1085524
             |
 _Isector_21 |
         D1. |  -.1851233   .1380948    -1.34   0.180    -.4559546    .0857079
             |
 _Isector_22 |
         D1. |  -.0932517   .0878723    -1.06   0.289    -.2655867    .0790833
             |
 _Isector_23 |
         D1. |  -.2270941   .1439559    -1.58   0.115    -.5094203     .055232
             |
 _Isector_24 |
         D1. |   .0735547   .2674964     0.27   0.783    -.4510588    .5981681
             |
 _Isector_25 |
         D1. |  -.0322699   .1009552    -0.32   0.749     -.230263    .1657233
             |
 _Isector_26 |
         D1. |  -.0189447   .0833275    -0.23   0.820    -.1823665     .144477
             |
 _Isector_27 |
         D1. |   .2309114    .298881     0.77   0.440    -.3552535    .8170762
             |
 _Isector_28 |
         D1. |          0  (omitted)
             |
 _Isector_29 |
         D1. |  -.1129082   .0805408    -1.40   0.161    -.2708647    .0450482
             |
 _Isector_30 |
         D1. |  -.0866372   .1018149    -0.85   0.395    -.2863165     .113042
             |
 _Isector_31 |
         D1. |  -.4513966   .1965059    -2.30   0.022    -.8367835   -.0660096
             |
 _Isector_32 |
         D1. |  -.1054439   .0470783    -2.24   0.025    -.1977739   -.0131139
             |
 _Isector_33 |
         D1. |          0  (omitted)
             |
 _Isector_34 |
         D1. |          0  (omitted)
             |
 _Isector_35 |
         D1. |  -.0284566   .1581856    -0.18   0.857      -.33869    .2817767
             |
 _Isector_36 |
         D1. |          0  (omitted)
             |
 _Isector_37 |
         D1. |          0  (omitted)
             |
 _Isector_38 |
         D1. |   .0173801   .0844972     0.21   0.837    -.1483357    .1830959
             |
 _Isector_39 |
         D1. |  -.2429583   .2311006    -1.05   0.293    -.6961923    .2102757
             |
 _Isector_40 |
         D1. |  -.0520442   .1139476    -0.46   0.648    -.2755179    .1714296
             |
 _Isector_41 |
         D1. |  -.1156278   .0926902    -1.25   0.212    -.2974116     .066156
             |
 _Isector_42 |
         D1. |  -.0865437   .0742273    -1.17   0.244    -.2321182    .0590308
             |
 _Isector_43 |
         D1. |          0  (omitted)
             |
 _Isector_44 |
         D1. |   1.207148   .5913119     2.04   0.041     .0474683    2.366828
             |
 _Isector_45 |
         D1. |   .3861679   .2323176     1.66   0.097    -.0694531    .8417888
             |
 _Isector_46 |
         D1. |   .0036822   .1071021     0.03   0.973    -.2063662    .2137306
             |
   _Ieduc_32 |
         D1. |          0  (omitted)
             |
   _Ieduc_33 |
         D1. |          0  (omitted)
             |
   _Ieduc_35 |
         D1. |  -.2864059   .1333177    -2.15   0.032    -.5478683   -.0249435
             |
   _Ieduc_36 |
         D1. |          0  (omitted)
             |
   _Ieduc_37 |
         D1. |          0  (omitted)
             |
   _Ieduc_38 |
         D1. |          0  (omitted)
             |
   _Ieduc_53 |
         D1. |          0  (omitted)
             |
   _Ieduc_54 |
         D1. |          0  (omitted)
             |
   _Ieduc_55 |
         D1. |   -.000054   .1241786    -0.00   1.000    -.2435929    .2434849
             |
   _Ieduc_56 |
         D1. |          0  (omitted)
             |
   _Ieduc_57 |
         D1. |          0  (omitted)
             |
   _Ieduc_63 |
         D1. |          0  (omitted)
             |
   _Ieduc_64 |
         D1. |   .4238605   .1666599     2.54   0.011     .0970074    .7507137
             |
   _Ieduc_65 |
         D1. |   .1113922   .1146114     0.97   0.331    -.1133834    .3361678
             |
   _Ieduc_66 |
         D1. |   .1934548   .1288039     1.50   0.133    -.0591552    .4460648
             |
   _Ieduc_72 |
         D1. |          0  (omitted)
             |
   _Ieduc_73 |
         D1. |          0  (omitted)
             |
   _Ieduc_74 |
         D1. |   .2062974   .1285063     1.61   0.109    -.0457289    .4583237
             |
   _Ieduc_75 |
         D1. |   .3053247   .1360423     2.24   0.025     .0385188    .5721306
             |
   _Ieduc_76 |
         D1. |          0  (omitted)
             |
   _Ieduc_77 |
         D1. |          0  (omitted)
             |
   _Ieduc_83 |
         D1. |          0  (omitted)
             |
   _Ieduc_84 |
         D1. |   .2597979   .1391806     1.87   0.062    -.0131629    .5327587
             |
   _Ieduc_85 |
         D1. |   .4474445    .167384     2.67   0.008     .1191714    .7757177
             |
   _Ieduc_86 |
         D1. |          0  (omitted)
             |
   _Ieduc_87 |
         D1. |          0  (omitted)
             |
   _Ieduc_99 |
         D1. |   .2348686    .149985     1.57   0.118    -.0592818    .5290189
             |
   _Inuts2_2 |
         D1. |  -.0193986   .0663498    -0.29   0.770    -.1495237    .1107266
             |
   _Inuts2_3 |
         D1. |   .0258609   .0602275     0.43   0.668    -.0922572    .1439789
             |
   _Inuts2_4 |
         D1. |  -.0019967   .0894896    -0.02   0.982    -.1775035    .1735101
             |
   _Inuts2_5 |
         D1. |  -.1595027   .0906958    -1.76   0.079    -.3373751    .0183697
             |
   _Inuts2_6 |
         D1. |   .0701533   .0132754     5.28   0.000     .0441177     .096189
             |
        pats |
         D1. |   .0202665   .0082326     2.46   0.014     .0041208    .0364123
             |
     lagpats |
         D1. |   .0010545   .0109953     0.10   0.924    -.0205095    .0226185
             |
     lagpat2 |
         D1. |  -.0199699   .0105094    -1.90   0.058    -.0405808    .0006411
             |
     lagpat3 |
         D1. |  -.0172642   .0124115    -1.39   0.164    -.0416057    .0070773
             |
       _cons |   .1428131   .0224477     6.36   0.000     .0987888    .1868375
------------------------------------------------------------------------------

. xi: reg D.(logwage $expl_5), vce(cluster id);
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity

Linear regression                                      Number of obs =    6558
                                                       F( 49,  1833) =       .
                                                       Prob > F      =       .
                                                       R-squared     =  0.0259
                                                       Root MSE      =  .40269

                                  (Std. Err. adjusted for 1834 clusters in id)
------------------------------------------------------------------------------
             |               Robust
   D.logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |
         D1. |          0  (omitted)
             |
        age2 |
         D1. |  -.0013458   .0003026    -4.45   0.000    -.0019392   -.0007525
             |
      tenure |
         D1. |   .0042465   .0016176     2.63   0.009     .0010739    .0074191
             |
      female |
         D1. |          0  (omitted)
             |
      months |
         D1. |    .019889   .0089903     2.21   0.027     .0022567    .0375213
             |
         emp |
         D1. |   .0019872   .0005277     3.77   0.000     .0009522    .0030221
             |
_Ivuosi_1992 |
         D1. |          0  (omitted)
             |
_Ivuosi_1993 |
         D1. |          0  (omitted)
             |
_Ivuosi_1994 |
         D1. |          0  (omitted)
             |
_Ivuosi_1995 |
         D1. |          0  (omitted)
             |
_Ivuosi_1996 |
         D1. |   -.021484    .007803    -2.75   0.006    -.0367878   -.0061803
             |
_Ivuosi_1997 |
         D1. |  -.0254717    .010498    -2.43   0.015    -.0460609   -.0048824
             |
_Ivuosi_1998 |
         D1. |   .0154645   .0129096     1.20   0.231    -.0098546    .0407836
             |
_Ivuosi_1999 |
         D1. |          0  (omitted)
             |
  _Isector_2 |
         D1. |  -.0874954   .0071518   -12.23   0.000    -.1015219   -.0734688
             |
  _Isector_3 |
         D1. |          0  (omitted)
             |
  _Isector_4 |
         D1. |   .1160313   .2940783     0.39   0.693    -.4607324     .692795
             |
  _Isector_5 |
         D1. |  -.1781493   .0335126    -5.32   0.000    -.2438761   -.1124225
             |
  _Isector_6 |
         D1. |          0  (omitted)
             |
  _Isector_7 |
         D1. |          0  (omitted)
             |
  _Isector_8 |
         D1. |          0  (omitted)
             |
  _Isector_9 |
         D1. |  -.0346348   .2372891    -0.15   0.884    -.5000202    .4307507
             |
 _Isector_10 |
         D1. |  -.0780468   .1603858    -0.49   0.627    -.3926049    .2365112
             |
 _Isector_11 |
         D1. |          0  (omitted)
             |
 _Isector_12 |
         D1. |  -.2186212   .1025004    -2.13   0.033     -.419651   -.0175915
             |
 _Isector_13 |
         D1. |  -.0954287   .0992259    -0.96   0.336    -.2900364     .099179
             |
 _Isector_14 |
         D1. |   .0743132   .1397804     0.53   0.595    -.1998323    .3484588
             |
 _Isector_15 |
         D1. |   .0558364   .2934748     0.19   0.849    -.5197438    .6314165
             |
 _Isector_16 |
         D1. |  -.1705603   .1295402    -1.32   0.188    -.4246222    .0835016
             |
 _Isector_17 |
         D1. |  -.1030545   .1168994    -0.88   0.378    -.3323245    .1262155
             |
 _Isector_18 |
         D1. |  -.1486934   .0982042    -1.51   0.130    -.3412974    .0439105
             |
 _Isector_19 |
         D1. |  -.1905272   .1197285    -1.59   0.112    -.4253458    .0442914
             |
 _Isector_20 |
         D1. |  -.0781332    .107394    -0.73   0.467    -.2887606    .1324943
             |
 _Isector_21 |
         D1. |  -.2611776   .1624683    -1.61   0.108      -.57982    .0574647
             |
 _Isector_22 |
         D1. |  -.1247468     .10107    -1.23   0.217    -.3229712    .0734776
             |
 _Isector_23 |
         D1. |  -.1125679   .1370089    -0.82   0.411    -.3812779    .1561421
             |
 _Isector_24 |
         D1. |   .0691683   .2941381     0.24   0.814    -.5077128    .6460493
             |
 _Isector_25 |
         D1. |  -.0822224   .1169344    -0.70   0.482    -.3115611    .1471162
             |
 _Isector_26 |
         D1. |  -.1062986   .0991141    -1.07   0.284     -.300687    .0880899
             |
 _Isector_27 |
         D1. |    .180106   .3452517     0.52   0.602     -.497022     .857234
             |
 _Isector_28 |
         D1. |          0  (omitted)
             |
 _Isector_29 |
         D1. |  -.1928873   .0984843    -1.96   0.050    -.3860405     .000266
             |
 _Isector_30 |
         D1. |  -.1555487   .1196765    -1.30   0.194    -.3902653    .0791678
             |
 _Isector_31 |
         D1. |          0  (omitted)
             |
 _Isector_32 |
         D1. |          0  (omitted)
             |
 _Isector_33 |
         D1. |          0  (omitted)
             |
 _Isector_34 |
         D1. |          0  (omitted)
             |
 _Isector_35 |
         D1. |  -.0657906   .1950216    -0.34   0.736    -.4482786    .3166973
             |
 _Isector_36 |
         D1. |          0  (omitted)
             |
 _Isector_37 |
         D1. |          0  (omitted)
             |
 _Isector_38 |
         D1. |  -.0475513   .1067619    -0.45   0.656     -.256939    .1618364
             |
 _Isector_39 |
         D1. |  -.2929831   .2347154    -1.25   0.212    -.7533208    .1673547
             |
 _Isector_40 |
         D1. |  -.0875759     .13169    -0.67   0.506    -.3458542    .1707023
             |
 _Isector_41 |
         D1. |  -.1714641   .1059899    -1.62   0.106    -.3793377    .0364095
             |
 _Isector_42 |
         D1. |  -.1657527   .0899673    -1.84   0.066    -.3422019    .0106965
             |
 _Isector_43 |
         D1. |          0  (omitted)
             |
 _Isector_44 |
         D1. |   1.137272   .5803711     1.96   0.050     -.000986     2.27553
             |
 _Isector_45 |
         D1. |          0  (omitted)
             |
 _Isector_46 |
         D1. |  -.0627357   .1238989    -0.51   0.613    -.3057336    .1802622
             |
   _Ieduc_32 |
         D1. |          0  (omitted)
             |
   _Ieduc_33 |
         D1. |          0  (omitted)
             |
   _Ieduc_35 |
         D1. |  -.2890835     .13937    -2.07   0.038    -.5624243   -.0157428
             |
   _Ieduc_36 |
         D1. |          0  (omitted)
             |
   _Ieduc_37 |
         D1. |          0  (omitted)
             |
   _Ieduc_38 |
         D1. |          0  (omitted)
             |
   _Ieduc_53 |
         D1. |          0  (omitted)
             |
   _Ieduc_54 |
         D1. |          0  (omitted)
             |
   _Ieduc_55 |
         D1. |   .0727288   .1651245     0.44   0.660    -.2511231    .3965806
             |
   _Ieduc_56 |
         D1. |          0  (omitted)
             |
   _Ieduc_57 |
         D1. |          0  (omitted)
             |
   _Ieduc_63 |
         D1. |          0  (omitted)
             |
   _Ieduc_64 |
         D1. |          0  (omitted)
             |
   _Ieduc_65 |
         D1. |   .2463605   .1660928     1.48   0.138    -.0793905    .5721116
             |
   _Ieduc_66 |
         D1. |    .298941   .1900244     1.57   0.116     -.073746     .671628
             |
   _Ieduc_72 |
         D1. |          0  (omitted)
             |
   _Ieduc_73 |
         D1. |          0  (omitted)
             |
   _Ieduc_74 |
         D1. |   .3286015   .1895097     1.73   0.083    -.0430761    .7002791
             |
   _Ieduc_75 |
         D1. |   .3842456   .2155342     1.78   0.075    -.0384728     .806964
             |
   _Ieduc_76 |
         D1. |          0  (omitted)
             |
   _Ieduc_77 |
         D1. |          0  (omitted)
             |
   _Ieduc_83 |
         D1. |          0  (omitted)
             |
   _Ieduc_84 |
         D1. |   .3754117   .2048036     1.83   0.067    -.0262612    .7770847
             |
   _Ieduc_85 |
         D1. |   .5434765   .2415136     2.25   0.025     .0698058    1.017147
             |
   _Ieduc_86 |
         D1. |          0  (omitted)
             |
   _Ieduc_87 |
         D1. |          0  (omitted)
             |
   _Ieduc_99 |
         D1. |   .0863414   .1415259     0.61   0.542    -.1912277    .3639104
             |
   _Inuts2_2 |
         D1. |  -.0096113   .0745954    -0.13   0.897    -.1559121    .1366895
             |
   _Inuts2_3 |
         D1. |  -.0273878   .0504927    -0.54   0.588    -.1264171    .0716415
             |
   _Inuts2_4 |
         D1. |   .0243089   .0900144     0.27   0.787    -.1522327    .2008506
             |
   _Inuts2_5 |
         D1. |  -.2089128   .1082625    -1.93   0.054    -.4212436     .003418
             |
   _Inuts2_6 |
         D1. |   .0812266   .0124254     6.54   0.000     .0568571     .105596
             |
        pats |
         D1. |   .0213811   .0097849     2.19   0.029     .0021905    .0405718
             |
     lagpats |
         D1. |   .0007118   .0129758     0.05   0.956    -.0247372    .0261608
             |
     lagpat2 |
         D1. |  -.0188737   .0125799    -1.50   0.134    -.0435461    .0057987
             |
     lagpat3 |
         D1. |  -.0153667   .0138909    -1.11   0.269    -.0426103    .0118769
             |
     lagpat4 |
         D1. |   .0078227   .0088167     0.89   0.375    -.0094691    .0251145
             |
       _cons |   .1613545   .0286035     5.64   0.000     .1052556    .2174534
------------------------------------------------------------------------------

. xi: reg D.(logwage $expl_6), vce(cluster id);
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity

Linear regression                                      Number of obs =    4808
                                                       F( 47,  1740) =       .
                                                       Prob > F      =       .
                                                       R-squared     =  0.0293
                                                       Root MSE      =  .42599

                                  (Std. Err. adjusted for 1741 clusters in id)
------------------------------------------------------------------------------
             |               Robust
   D.logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |
         D1. |          0  (omitted)
             |
        age2 |
         D1. |  -.0016979    .000388    -4.38   0.000    -.0024589   -.0009369
             |
      tenure |
         D1. |   .0031999   .0018808     1.70   0.089    -.0004889    .0068887
             |
      female |
         D1. |          0  (omitted)
             |
      months |
         D1. |   .0124903   .0070071     1.78   0.075    -.0012529    .0262336
             |
         emp |
         D1. |   .0026566   .0007007     3.79   0.000     .0012824    .0040309
             |
_Ivuosi_1992 |
         D1. |          0  (omitted)
             |
_Ivuosi_1993 |
         D1. |          0  (omitted)
             |
_Ivuosi_1994 |
         D1. |          0  (omitted)
             |
_Ivuosi_1995 |
         D1. |          0  (omitted)
             |
_Ivuosi_1996 |
         D1. |          0  (omitted)
             |
_Ivuosi_1997 |
         D1. |  -.0141068   .0074984    -1.88   0.060    -.0288137       .0006
             |
_Ivuosi_1998 |
         D1. |   .0189706   .0115031     1.65   0.099    -.0035908     .041532
             |
_Ivuosi_1999 |
         D1. |          0  (omitted)
             |
  _Isector_2 |
         D1. |  -.0955366   .0076017   -12.57   0.000     -.110446   -.0806271
             |
  _Isector_3 |
         D1. |          0  (omitted)
             |
  _Isector_4 |
         D1. |   .0600997   .0151578     3.96   0.000     .0303703    .0898291
             |
  _Isector_5 |
         D1. |    -.20091   .0429761    -4.67   0.000    -.2852002   -.1166197
             |
  _Isector_6 |
         D1. |          0  (omitted)
             |
  _Isector_7 |
         D1. |          0  (omitted)
             |
  _Isector_8 |
         D1. |          0  (omitted)
             |
  _Isector_9 |
         D1. |   .0085479   .2968854     0.03   0.977    -.5737419    .5908377
             |
 _Isector_10 |
         D1. |  -.0831287    .229365    -0.36   0.717    -.5329889    .3667314
             |
 _Isector_11 |
         D1. |          0  (omitted)
             |
 _Isector_12 |
         D1. |  -.1918881   .1201063    -1.60   0.110     -.427456    .0436797
             |
 _Isector_13 |
         D1. |  -.0562255    .116607    -0.48   0.630    -.2849301     .172479
             |
 _Isector_14 |
         D1. |   -.080492   .1174955    -0.69   0.493    -.3109393    .1499552
             |
 _Isector_15 |
         D1. |          0  (omitted)
             |
 _Isector_16 |
         D1. |  -.1985796   .1282747    -1.55   0.122    -.4501684    .0530093
             |
 _Isector_17 |
         D1. |    -.11017   .1255603    -0.88   0.380     -.356435     .136095
             |
 _Isector_18 |
         D1. |  -.1150949   .1063814    -1.08   0.279    -.3237438    .0935539
             |
 _Isector_19 |
         D1. |  -.1767891   .1528362    -1.16   0.248    -.4765511    .1229729
             |
 _Isector_20 |
         D1. |  -.0551052    .125345    -0.44   0.660    -.3009479    .1907375
             |
 _Isector_21 |
         D1. |   -.251418   .1950784    -1.29   0.198    -.6340308    .1311949
             |
 _Isector_22 |
         D1. |  -.0976712    .115839    -0.84   0.399    -.3248696    .1295271
             |
 _Isector_23 |
         D1. |  -.0761904   .1732277    -0.44   0.660    -.4159469     .263566
             |
 _Isector_24 |
         D1. |  -.1743685   .1355351    -1.29   0.198    -.4401974    .0914604
             |
 _Isector_25 |
         D1. |  -.0407879   .1158603    -0.35   0.725     -.268028    .1864523
             |
 _Isector_26 |
         D1. |   -.071092    .109381    -0.65   0.516    -.2856241    .1434401
             |
 _Isector_27 |
         D1. |   .4140125   .3562027     1.16   0.245     -.284618    1.112643
             |
 _Isector_28 |
         D1. |          0  (omitted)
             |
 _Isector_29 |
         D1. |  -.1408054   .1047973    -1.34   0.179    -.3463473    .0647365
             |
 _Isector_30 |
         D1. |  -.1200769   .1666476    -0.72   0.471    -.4469276    .2067738
             |
 _Isector_31 |
         D1. |          0  (omitted)
             |
 _Isector_32 |
         D1. |          0  (omitted)
             |
 _Isector_33 |
         D1. |          0  (omitted)
             |
 _Isector_34 |
         D1. |          0  (omitted)
             |
 _Isector_35 |
         D1. |  -.1821369   .1677938    -1.09   0.278    -.5112356    .1469617
             |
 _Isector_36 |
         D1. |          0  (omitted)
             |
 _Isector_37 |
         D1. |          0  (omitted)
             |
 _Isector_38 |
         D1. |   .0033566   .1186138     0.03   0.977    -.2292841    .2359973
             |
 _Isector_39 |
         D1. |  -.2446262    .231283    -1.06   0.290    -.6982482    .2089958
             |
 _Isector_40 |
         D1. |  -.1862772   .1308933    -1.42   0.155    -.4430019    .0704474
             |
 _Isector_41 |
         D1. |  -.1259394   .1194434    -1.05   0.292    -.3602072    .1083284
             |
 _Isector_42 |
         D1. |   -.105242   .1032037    -1.02   0.308    -.3076584    .0971743
             |
 _Isector_43 |
         D1. |          0  (omitted)
             |
 _Isector_44 |
         D1. |   1.192697   .5749378     2.07   0.038     .0650552    2.320339
             |
 _Isector_45 |
         D1. |          0  (omitted)
             |
 _Isector_46 |
         D1. |  -.0194215   .1262914    -0.15   0.878    -.2671204    .2282773
             |
   _Ieduc_32 |
         D1. |          0  (omitted)
             |
   _Ieduc_33 |
         D1. |          0  (omitted)
             |
   _Ieduc_35 |
         D1. |  -.2522813   .1508003    -1.67   0.095    -.5480502    .0434877
             |
   _Ieduc_36 |
         D1. |          0  (omitted)
             |
   _Ieduc_37 |
         D1. |          0  (omitted)
             |
   _Ieduc_38 |
         D1. |          0  (omitted)
             |
   _Ieduc_53 |
         D1. |          0  (omitted)
             |
   _Ieduc_54 |
         D1. |          0  (omitted)
             |
   _Ieduc_55 |
         D1. |   .1108066   .1825444     0.61   0.544    -.2472229    .4688362
             |
   _Ieduc_56 |
         D1. |          0  (omitted)
             |
   _Ieduc_57 |
         D1. |          0  (omitted)
             |
   _Ieduc_63 |
         D1. |          0  (omitted)
             |
   _Ieduc_64 |
         D1. |          0  (omitted)
             |
   _Ieduc_65 |
         D1. |    .354316   .1979195     1.79   0.074    -.0338691     .742501
             |
   _Ieduc_66 |
         D1. |   .3522354   .1977865     1.78   0.075    -.0356889    .7401597
             |
   _Ieduc_72 |
         D1. |          0  (omitted)
             |
   _Ieduc_73 |
         D1. |          0  (omitted)
             |
   _Ieduc_74 |
         D1. |   .4018181   .1976595     2.03   0.042     .0141429    .7894933
             |
   _Ieduc_75 |
         D1. |   .5927412   .1795038     3.30   0.001     .2406752    .9448072
             |
   _Ieduc_76 |
         D1. |          0  (omitted)
             |
   _Ieduc_77 |
         D1. |          0  (omitted)
             |
   _Ieduc_83 |
         D1. |          0  (omitted)
             |
   _Ieduc_84 |
         D1. |   .4803299   .1985864     2.42   0.016     .0908368    .8698231
             |
   _Ieduc_85 |
         D1. |   .6788612   .1942227     3.50   0.000     .2979268    1.059796
             |
   _Ieduc_86 |
         D1. |          0  (omitted)
             |
   _Ieduc_87 |
         D1. |          0  (omitted)
             |
   _Ieduc_99 |
         D1. |     .12953   .1531334     0.85   0.398    -.1708149    .4298749
             |
   _Inuts2_2 |
         D1. |  -.0694802   .0894396    -0.78   0.437    -.2449006    .1059402
             |
   _Inuts2_3 |
         D1. |  -.0345499   .0523928    -0.66   0.510    -.1373093    .0682096
             |
   _Inuts2_4 |
         D1. |  -.0516583   .0640073    -0.81   0.420    -.1771977    .0738811
             |
   _Inuts2_5 |
         D1. |  -.1915623   .1391278    -1.38   0.169    -.4644377     .081313
             |
   _Inuts2_6 |
         D1. |          0  (omitted)
             |
        pats |
         D1. |   .0261153   .0112623     2.32   0.021     .0040263    .0482042
             |
     lagpats |
         D1. |   .0022768   .0159072     0.14   0.886    -.0289223     .033476
             |
     lagpat2 |
         D1. |  -.0211834   .0171884    -1.23   0.218    -.0548956    .0125288
             |
     lagpat3 |
         D1. |  -.0100875   .0195533    -0.52   0.606    -.0484379     .028263
             |
     lagpat4 |
         D1. |   .0147078   .0118765     1.24   0.216     -.008586    .0380016
             |
     lagpat5 |
         D1. |   .0018181   .0128406     0.14   0.887    -.0233665    .0270026
             |
       _cons |   .1984276   .0367842     5.39   0.000     .1262818    .2705734
------------------------------------------------------------------------------

. xi: reg D.(logwage $expl_7), vce(cluster id);
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity

Linear regression                                      Number of obs =    3126
                                                       F( 43,  1638) =       .
                                                       Prob > F      =       .
                                                       R-squared     =  0.0349
                                                       Root MSE      =  .48918

                                  (Std. Err. adjusted for 1639 clusters in id)
------------------------------------------------------------------------------
             |               Robust
   D.logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |
         D1. |          0  (omitted)
             |
        age2 |
         D1. |  -.0015647   .0005839    -2.68   0.007      -.00271   -.0004193
             |
      tenure |
         D1. |   .0066951   .0021156     3.16   0.002     .0025456    .0108446
             |
      female |
         D1. |          0  (omitted)
             |
      months |
         D1. |   .0043853   .0045048     0.97   0.330    -.0044503     .013221
             |
         emp |
         D1. |   .0034627   .0009496     3.65   0.000     .0016002    .0053251
             |
_Ivuosi_1992 |
         D1. |          0  (omitted)
             |
_Ivuosi_1993 |
         D1. |          0  (omitted)
             |
_Ivuosi_1994 |
         D1. |          0  (omitted)
             |
_Ivuosi_1995 |
         D1. |          0  (omitted)
             |
_Ivuosi_1996 |
         D1. |          0  (omitted)
             |
_Ivuosi_1997 |
         D1. |          0  (omitted)
             |
_Ivuosi_1998 |
         D1. |   .0270998   .0094167     2.88   0.004     .0086298    .0455698
             |
_Ivuosi_1999 |
         D1. |          0  (omitted)
             |
  _Isector_2 |
         D1. |          0  (omitted)
             |
  _Isector_3 |
         D1. |          0  (omitted)
             |
  _Isector_4 |
         D1. |    .060511     .01859     3.26   0.001     .0240483    .0969738
             |
  _Isector_5 |
         D1. |  -.3946893   .2004214    -1.97   0.049    -.7877986     -.00158
             |
  _Isector_6 |
         D1. |          0  (omitted)
             |
  _Isector_7 |
         D1. |          0  (omitted)
             |
  _Isector_8 |
         D1. |          0  (omitted)
             |
  _Isector_9 |
         D1. |   .2231981   .2632506     0.85   0.397    -.2931451    .7395413
             |
 _Isector_10 |
         D1. |  -.4126481   .1972272    -2.09   0.037    -.7994922    -.025804
             |
 _Isector_11 |
         D1. |          0  (omitted)
             |
 _Isector_12 |
         D1. |  -.2226554   .1140565    -1.95   0.051    -.4463673    .0010566
             |
 _Isector_13 |
         D1. |  -.0316856   .0896328    -0.35   0.724    -.2074925    .1441214
             |
 _Isector_14 |
         D1. |  -.2085445   .1254313    -1.66   0.097     -.454567    .0374781
             |
 _Isector_15 |
         D1. |          0  (omitted)
             |
 _Isector_16 |
         D1. |  -.2724141   .1315409    -2.07   0.039    -.5304202   -.0144081
             |
 _Isector_17 |
         D1. |  -.0805992   .1819597    -0.44   0.658    -.4374974    .2762989
             |
 _Isector_18 |
         D1. |  -.1829256   .1142986    -1.60   0.110    -.4071123    .0412612
             |
 _Isector_19 |
         D1. |  -.2425937   .2247164    -1.08   0.280    -.6833555     .198168
             |
 _Isector_20 |
         D1. |  -.0803228   .1284485    -0.63   0.532    -.3322634    .1716177
             |
 _Isector_21 |
         D1. |  -.3808555   .2458601    -1.55   0.122    -.8630889    .1013778
             |
 _Isector_22 |
         D1. |  -.0912216   .1111795    -0.82   0.412    -.3092906    .1268475
             |
 _Isector_23 |
         D1. |          0  (omitted)
             |
 _Isector_24 |
         D1. |  -.2360762   .1603957    -1.47   0.141    -.5506785    .0785261
             |
 _Isector_25 |
         D1. |   .0165031   .1000377     0.16   0.869    -.1797122    .2127184
             |
 _Isector_26 |
         D1. |  -.0866217    .117694    -0.74   0.462    -.3174682    .1442249
             |
 _Isector_27 |
         D1. |   .0726975   .1957765     0.37   0.710    -.3113011    .4566961
             |
 _Isector_28 |
         D1. |          0  (omitted)
             |
 _Isector_29 |
         D1. |  -.2002474   .1174462    -1.71   0.088    -.4306079    .0301132
             |
 _Isector_30 |
         D1. |  -.0021113   .1220272    -0.02   0.986    -.2414571    .2372345
             |
 _Isector_31 |
         D1. |          0  (omitted)
             |
 _Isector_32 |
         D1. |          0  (omitted)
             |
 _Isector_33 |
         D1. |          0  (omitted)
             |
 _Isector_34 |
         D1. |          0  (omitted)
             |
 _Isector_35 |
         D1. |  -.2684771   .2176093    -1.23   0.217    -.6952988    .1583447
             |
 _Isector_36 |
         D1. |          0  (omitted)
             |
 _Isector_37 |
         D1. |          0  (omitted)
             |
 _Isector_38 |
         D1. |   .0284357   .1411346     0.20   0.840    -.2483876     .305259
             |
 _Isector_39 |
         D1. |    -.21397   .2105478    -1.02   0.310    -.6269413    .1990012
             |
 _Isector_40 |
         D1. |  -.2307766   .1423937    -1.62   0.105    -.5100695    .0485162
             |
 _Isector_41 |
         D1. |  -.1024815   .1028561    -1.00   0.319    -.3042248    .0992618
             |
 _Isector_42 |
         D1. |  -.0989764   .1155489    -0.86   0.392    -.3256154    .1276627
             |
 _Isector_43 |
         D1. |          0  (omitted)
             |
 _Isector_44 |
         D1. |   1.457684   .7335932     1.99   0.047     .0188048    2.896564
             |
 _Isector_45 |
         D1. |          0  (omitted)
             |
 _Isector_46 |
         D1. |          0  (omitted)
             |
   _Ieduc_32 |
         D1. |          0  (omitted)
             |
   _Ieduc_33 |
         D1. |          0  (omitted)
             |
   _Ieduc_35 |
         D1. |  -.2910208   .1843004    -1.58   0.115    -.6525102    .0704685
             |
   _Ieduc_36 |
         D1. |          0  (omitted)
             |
   _Ieduc_37 |
         D1. |          0  (omitted)
             |
   _Ieduc_38 |
         D1. |          0  (omitted)
             |
   _Ieduc_53 |
         D1. |          0  (omitted)
             |
   _Ieduc_54 |
         D1. |          0  (omitted)
             |
   _Ieduc_55 |
         D1. |   .4203444   .3804165     1.10   0.269    -.3258097    1.166498
             |
   _Ieduc_56 |
         D1. |          0  (omitted)
             |
   _Ieduc_57 |
         D1. |          0  (omitted)
             |
   _Ieduc_63 |
         D1. |          0  (omitted)
             |
   _Ieduc_64 |
         D1. |          0  (omitted)
             |
   _Ieduc_65 |
         D1. |   .6961118   .2910699     2.39   0.017     .1252034     1.26702
             |
   _Ieduc_66 |
         D1. |          0  (omitted)
             |
   _Ieduc_72 |
         D1. |          0  (omitted)
             |
   _Ieduc_73 |
         D1. |          0  (omitted)
             |
   _Ieduc_74 |
         D1. |   .7508257   .2887061     2.60   0.009     .1845537    1.317098
             |
   _Ieduc_75 |
         D1. |   .8677768   .2336183     3.71   0.000     .4095547    1.325999
             |
   _Ieduc_76 |
         D1. |          0  (omitted)
             |
   _Ieduc_77 |
         D1. |          0  (omitted)
             |
   _Ieduc_83 |
         D1. |          0  (omitted)
             |
   _Ieduc_84 |
         D1. |   .8338847   .2871965     2.90   0.004     .2705737    1.397196
             |
   _Ieduc_85 |
         D1. |   .9652036    .248886     3.88   0.000     .4770353    1.453372
             |
   _Ieduc_86 |
         D1. |          0  (omitted)
             |
   _Ieduc_87 |
         D1. |          0  (omitted)
             |
   _Ieduc_99 |
         D1. |   .0825011    .187638     0.44   0.660    -.2855345    .4505367
             |
   _Inuts2_2 |
         D1. |  -.0938779   .1169238    -0.80   0.422    -.3232138     .135458
             |
   _Inuts2_3 |
         D1. |  -.0416928   .0851571    -0.49   0.624    -.2087211    .1253355
             |
   _Inuts2_4 |
         D1. |  -.0424437   .1002515    -0.42   0.672    -.2390784     .154191
             |
   _Inuts2_5 |
         D1. |  -.0601404   .0578236    -1.04   0.298    -.1735564    .0532756
             |
   _Inuts2_6 |
         D1. |          0  (omitted)
             |
        pats |
         D1. |   .0275215   .0148487     1.85   0.064    -.0016029    .0566458
             |
     lagpats |
         D1. |    .003515   .0231593     0.15   0.879      -.04191      .04894
             |
     lagpat2 |
         D1. |  -.0252125    .024897    -1.01   0.311    -.0740459    .0236208
             |
     lagpat3 |
         D1. |   .0079688   .0214394     0.37   0.710    -.0340828    .0500204
             |
     lagpat4 |
         D1. |   .0421275   .0218117     1.93   0.054    -.0006543    .0849092
             |
     lagpat5 |
         D1. |   .0468038   .0199028     2.35   0.019     .0077662    .0858414
             |
     lagpat6 |
         D1. |   .0522368   .0206463     2.53   0.011     .0117409    .0927326
             |
       _cons |   .1863765   .0569974     3.27   0.001     .0745811     .298172
------------------------------------------------------------------------------

.  /* TABLE 3 */
> xi: reg D.(logwage $expl_8), vce(cluster id);
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity

Linear regression                                      Number of obs =    1515
                                                       F( 36,  1514) =       .
                                                       Prob > F      =       .
                                                       R-squared     =  0.0431
                                                       Root MSE      =   .5583

                                  (Std. Err. adjusted for 1515 clusters in id)
------------------------------------------------------------------------------
             |               Robust
   D.logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |
         D1. |          0  (omitted)
             |
        age2 |
         D1. |  -.0018458   .0009567    -1.93   0.054    -.0037223    .0000307
             |
      tenure |
         D1. |    .005668    .003615     1.57   0.117    -.0014231     .012759
             |
      female |
         D1. |          0  (omitted)
             |
      months |
         D1. |  -.0024368   .0045294    -0.54   0.591    -.0113214    .0064478
             |
         emp |
         D1. |   .0062707   .0018572     3.38   0.001     .0026279    .0099136
             |
_Ivuosi_1992 |
         D1. |          0  (omitted)
             |
_Ivuosi_1993 |
         D1. |          0  (omitted)
             |
_Ivuosi_1994 |
         D1. |          0  (omitted)
             |
_Ivuosi_1995 |
         D1. |          0  (omitted)
             |
_Ivuosi_1996 |
         D1. |          0  (omitted)
             |
_Ivuosi_1997 |
         D1. |          0  (omitted)
             |
_Ivuosi_1998 |
         D1. |          0  (omitted)
             |
_Ivuosi_1999 |
         D1. |          0  (omitted)
             |
  _Isector_2 |
         D1. |          0  (omitted)
             |
  _Isector_3 |
         D1. |          0  (omitted)
             |
  _Isector_4 |
         D1. |          0  (omitted)
             |
  _Isector_5 |
         D1. |  -.0973343   .0722734    -1.35   0.178    -.2391009    .0444322
             |
  _Isector_6 |
         D1. |          0  (omitted)
             |
  _Isector_7 |
         D1. |          0  (omitted)
             |
  _Isector_8 |
         D1. |          0  (omitted)
             |
  _Isector_9 |
         D1. |   .4425746   .3047006     1.45   0.147    -.1551055    1.040255
             |
 _Isector_10 |
         D1. |  -.4090172   .2792239    -1.46   0.143    -.9567238    .1386894
             |
 _Isector_11 |
         D1. |          0  (omitted)
             |
 _Isector_12 |
         D1. |  -.2283581   .0649069    -3.52   0.000     -.355675   -.1010412
             |
 _Isector_13 |
         D1. |   .0157287   .0940661     0.17   0.867     -.168785    .2002423
             |
 _Isector_14 |
         D1. |          0  (omitted)
             |
 _Isector_15 |
         D1. |          0  (omitted)
             |
 _Isector_16 |
         D1. |  -.1873403      .1425    -1.31   0.189    -.4668587     .092178
             |
 _Isector_17 |
         D1. |   -.012071   .2493838    -0.05   0.961    -.5012453    .4771034
             |
 _Isector_18 |
         D1. |  -.1478809   .1197519    -1.23   0.217    -.3827781    .0870162
             |
 _Isector_19 |
         D1. |  -.3662275   .3193967    -1.15   0.252    -.9927344    .2602795
             |
 _Isector_20 |
         D1. |   .0244935   .1272683     0.19   0.847    -.2251474    .2741343
             |
 _Isector_21 |
         D1. |  -.8443719   .3237623    -2.61   0.009    -1.479442   -.2093018
             |
 _Isector_22 |
         D1. |  -.1325751    .163343    -0.81   0.417    -.4529776    .1878275
             |
 _Isector_23 |
         D1. |          0  (omitted)
             |
 _Isector_24 |
         D1. |   .1335587   .1539209     0.87   0.386     -.168362    .4354794
             |
 _Isector_25 |
         D1. |   .1434518   .1009048     1.42   0.155    -.0544762    .3413798
             |
 _Isector_26 |
         D1. |  -.0132353   .0588349    -0.22   0.822    -.1286417    .1021712
             |
 _Isector_27 |
         D1. |   .1202495   .1942182     0.62   0.536    -.2607158    .5012147
             |
 _Isector_28 |
         D1. |          0  (omitted)
             |
 _Isector_29 |
         D1. |  -.1510184   .1092669    -1.38   0.167     -.365349    .0633122
             |
 _Isector_30 |
         D1. |          0  (omitted)
             |
 _Isector_31 |
         D1. |          0  (omitted)
             |
 _Isector_32 |
         D1. |          0  (omitted)
             |
 _Isector_33 |
         D1. |          0  (omitted)
             |
 _Isector_34 |
         D1. |          0  (omitted)
             |
 _Isector_35 |
         D1. |  -.4600391   .2711818    -1.70   0.090    -.9919708    .0718927
             |
 _Isector_36 |
         D1. |          0  (omitted)
             |
 _Isector_37 |
         D1. |          0  (omitted)
             |
 _Isector_38 |
         D1. |   .1960092   .1207457     1.62   0.105    -.0408374    .4328558
             |
 _Isector_39 |
         D1. |   .0635462    .131051     0.48   0.628    -.1935144    .3206068
             |
 _Isector_40 |
         D1. |  -.3103397   .2273804    -1.36   0.173    -.7563536    .1356742
             |
 _Isector_41 |
         D1. |  -.0547406   .1205213    -0.45   0.650    -.2911469    .1816658
             |
 _Isector_42 |
         D1. |   .0745746   .0618869     1.21   0.228    -.0468185    .1959676
             |
 _Isector_43 |
         D1. |          0  (omitted)
             |
 _Isector_44 |
         D1. |          0  (omitted)
             |
 _Isector_45 |
         D1. |          0  (omitted)
             |
 _Isector_46 |
         D1. |          0  (omitted)
             |
   _Ieduc_32 |
         D1. |          0  (omitted)
             |
   _Ieduc_33 |
         D1. |          0  (omitted)
             |
   _Ieduc_35 |
         D1. |  -.3894306    .042352    -9.20   0.000    -.4725054   -.3063558
             |
   _Ieduc_36 |
         D1. |          0  (omitted)
             |
   _Ieduc_37 |
         D1. |          0  (omitted)
             |
   _Ieduc_38 |
         D1. |          0  (omitted)
             |
   _Ieduc_53 |
         D1. |          0  (omitted)
             |
   _Ieduc_54 |
         D1. |          0  (omitted)
             |
   _Ieduc_55 |
         D1. |  -.2591114   .5043521    -0.51   0.608    -1.248414    .7301914
             |
   _Ieduc_56 |
         D1. |          0  (omitted)
             |
   _Ieduc_57 |
         D1. |          0  (omitted)
             |
   _Ieduc_63 |
         D1. |          0  (omitted)
             |
   _Ieduc_64 |
         D1. |          0  (omitted)
             |
   _Ieduc_65 |
         D1. |   .0872642    .381932     0.23   0.819    -.6619077     .836436
             |
   _Ieduc_66 |
         D1. |          0  (omitted)
             |
   _Ieduc_72 |
         D1. |          0  (omitted)
             |
   _Ieduc_73 |
         D1. |          0  (omitted)
             |
   _Ieduc_74 |
         D1. |  -.0854161   .0428169    -1.99   0.046    -.1694028   -.0014294
             |
   _Ieduc_75 |
         D1. |   .3821477   .3075808     1.24   0.214    -.2211818    .9854772
             |
   _Ieduc_76 |
         D1. |          0  (omitted)
             |
   _Ieduc_77 |
         D1. |          0  (omitted)
             |
   _Ieduc_83 |
         D1. |          0  (omitted)
             |
   _Ieduc_84 |
         D1. |          0  (omitted)
             |
   _Ieduc_85 |
         D1. |   .4924336   .3232598     1.52   0.128    -.1416509    1.126518
             |
   _Ieduc_86 |
         D1. |          0  (omitted)
             |
   _Ieduc_87 |
         D1. |          0  (omitted)
             |
   _Ieduc_99 |
         D1. |          0  (omitted)
             |
   _Inuts2_2 |
         D1. |   .0587509   .1116062     0.53   0.599    -.1601682    .2776699
             |
   _Inuts2_3 |
         D1. |   .0146889    .097927     0.15   0.881     -.177398    .2067758
             |
   _Inuts2_4 |
         D1. |   .0724487   .1262523     0.57   0.566    -.1751992    .3200966
             |
   _Inuts2_5 |
         D1. |  -.0662919   .0441907    -1.50   0.134    -.1529735    .0203896
             |
   _Inuts2_6 |
         D1. |          0  (omitted)
             |
        pats |
         D1. |   .0267344   .0254663     1.05   0.294    -.0232185    .0766874
             |
     lagpats |
         D1. |   .0041393   .0364363     0.11   0.910    -.0673317    .0756103
             |
     lagpat2 |
         D1. |  -.0420254   .0478669    -0.88   0.380    -.1359179    .0518671
             |
     lagpat3 |
         D1. |    .009221   .0399643     0.23   0.818    -.0691702    .0876122
             |
     lagpat4 |
         D1. |   .0264104   .0343879     0.77   0.443    -.0410426    .0938634
             |
     lagpat5 |
         D1. |   .0427362   .0469491     0.91   0.363     -.049356    .1348284
             |
     lagpat6 |
         D1. |   .0426004   .0387562     1.10   0.272    -.0334211     .118622
             |
     lagpat7 |
         D1. |  -.0077224   .0306815    -0.25   0.801    -.0679051    .0524603
             |
       _cons |   .1934112   .0923041     2.10   0.036     .0123537    .3744686
------------------------------------------------------------------------------

. *-----------------------------------------------------;
. *citations;
. xi: reg logwage $expl_11, cluster(id);
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)

Linear regression                                      Number of obs =   15996
                                                       F( 83,  2155) =       .
                                                       Prob > F      =       .
                                                       R-squared     =  0.3301
                                                       Root MSE      =  .46867

                                  (Std. Err. adjusted for 2156 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .1104999   .0082405    13.41   0.000     .0943397      .12666
        age2 |  -.0011283   .0001019   -11.07   0.000    -.0013281   -.0009284
      tenure |   .0067678   .0013485     5.02   0.000     .0041232    .0094123
      female |  -.2129413   .0228236    -9.33   0.000    -.2576998   -.1681828
      months |   .1141763   .0091579    12.47   0.000      .096217    .1321356
         emp |   .0007823   .0002794     2.80   0.005     .0002344    .0013302
_Ivuosi_1992 |  -.0270073   .0102752    -2.63   0.009    -.0471576    -.006857
_Ivuosi_1993 |  -.0437611   .0112098    -3.90   0.000    -.0657443   -.0217779
_Ivuosi_1994 |  -.0274019    .012126    -2.26   0.024    -.0511818   -.0036219
_Ivuosi_1995 |   .0077593   .0129335     0.60   0.549    -.0176041    .0331226
_Ivuosi_1996 |   .0262977   .0128589     2.05   0.041     .0010804    .0515149
_Ivuosi_1997 |   .0642494   .0123931     5.18   0.000     .0399458     .088553
_Ivuosi_1998 |   .1327071   .0138754     9.56   0.000     .1054966    .1599176
_Ivuosi_1999 |   .1761447   .0193675     9.09   0.000     .1381637    .2141257
  _Isector_2 |  -.1011349   .1544532    -0.65   0.513    -.4040279     .201758
  _Isector_3 |  -3.065319   .1408753   -21.76   0.000    -3.341585   -2.789054
  _Isector_4 |   -.596574   .1363209    -4.38   0.000    -.8639082   -.3292398
  _Isector_5 |  -.3727406   .0876937    -4.25   0.000    -.5447138   -.2007674
  _Isector_6 |   1.112695   .4125357     2.70   0.007     .3036852    1.921704
  _Isector_7 |  -.3040694   .1286608    -2.36   0.018    -.5563816   -.0517571
  _Isector_8 |  -.1295862   .3590484    -0.36   0.718    -.8337036    .5745311
  _Isector_9 |  -.3926061   .1496026    -2.62   0.009    -.6859866   -.0992257
 _Isector_10 |  -.2494027   .1066814    -2.34   0.019    -.4586118   -.0401936
 _Isector_11 |  -.7683885   .1146206    -6.70   0.000    -.9931669   -.5436101
 _Isector_12 |  -.4227037   .0983597    -4.30   0.000    -.6155935   -.2298138
 _Isector_13 |  -.4277501   .0959291    -4.46   0.000    -.6158733   -.2396269
 _Isector_14 |  -.3469804   .1218592    -2.85   0.004    -.5859543   -.1080065
 _Isector_15 |  -.2641407   .1228316    -2.15   0.032    -.5050215   -.0232598
 _Isector_16 |  -.4201896   .1027667    -4.09   0.000    -.6217218   -.2186574
 _Isector_17 |  -.4377883   .0992784    -4.41   0.000    -.6324798   -.2430968
 _Isector_18 |  -.3883054   .0955223    -4.07   0.000    -.5756308     -.20098
 _Isector_19 |  -.4005849   .1075764    -3.72   0.000    -.6115493   -.1896205
 _Isector_20 |  -.4747692   .0994448    -4.77   0.000    -.6697869   -.2797515
 _Isector_21 |  -.3075965   .0972271    -3.16   0.002    -.4982653   -.1169277
 _Isector_22 |  -.3703125   .0960683    -3.85   0.000    -.5587087   -.1819163
 _Isector_23 |  -.4630351   .1302668    -3.55   0.000    -.7184967   -.2075734
 _Isector_24 |  -.3341093   .1034552    -3.23   0.001    -.5369918   -.1312269
 _Isector_25 |  -.4361288   .1193652    -3.65   0.000    -.6702118   -.2020458
 _Isector_26 |  -.5319955   .1095852    -4.85   0.000    -.7468993   -.3170917
 _Isector_27 |  -.4064108   .1272331    -3.19   0.001    -.6559233   -.1568983
 _Isector_28 |  -.5134387   .1184642    -4.33   0.000    -.7457548   -.2811227
 _Isector_29 |  -.4346263   .1173517    -3.70   0.000    -.6647607   -.2044919
 _Isector_30 |  -.6313655   .1209077    -5.22   0.000    -.8684735   -.3942575
 _Isector_31 |  -.0630034   .4138116    -0.15   0.879     -.874515    .7485081
 _Isector_32 |  -.2909403   .2209772    -1.32   0.188     -.724291    .1424105
 _Isector_33 |  -.4903212   .1173298    -4.18   0.000    -.7204126   -.2602297
 _Isector_34 |  -.3640961   .1452662    -2.51   0.012    -.6489726   -.0792195
 _Isector_35 |   -.375517   .1233036    -3.05   0.002    -.6173235   -.1337105
 _Isector_36 |  -.4675385   .0975163    -4.79   0.000    -.6587743   -.2763027
 _Isector_37 |  -1.004744   .4288338    -2.34   0.019    -1.845715    -.163773
 _Isector_38 |  -.5587875   .1313292    -4.25   0.000    -.8163328   -.3012423
 _Isector_39 |   .0089582   .2504537     0.04   0.971    -.4821978    .5001143
 _Isector_40 |  -.2846905   .1181577    -2.41   0.016    -.5164056   -.0529755
 _Isector_41 |  -.4541923   .1062226    -4.28   0.000    -.6625017   -.2458828
 _Isector_42 |  -.3800026   .0974453    -3.90   0.000    -.5710991    -.188906
 _Isector_43 |  -.2410913   .1216963    -1.98   0.048    -.4797457   -.0024369
 _Isector_44 |  -.6195266   .1938708    -3.20   0.001      -.99972   -.2393332
 _Isector_45 |  -.2163469    .219155    -0.99   0.324    -.6461241    .2134304
 _Isector_46 |   -.479599   .1068509    -4.49   0.000    -.6891405   -.2700575
   _Ieduc_32 |   -.103951    .070158    -1.48   0.139    -.2415354    .0336335
   _Ieduc_33 |  -.1983245   .0923067    -2.15   0.032     -.379344    -.017305
   _Ieduc_35 |  -.2061693   .0523151    -3.94   0.000    -.3087628   -.1035759
   _Ieduc_36 |   .0849274   .3333641     0.25   0.799    -.5688214    .7386762
   _Ieduc_37 |  -.1553673   .3339237    -0.47   0.642    -.8102136    .4994789
   _Ieduc_38 |  -.7368442   .4015218    -1.84   0.067    -1.524255    .0505664
   _Ieduc_53 |   .1956115   .1505462     1.30   0.194    -.0996195    .4908425
   _Ieduc_54 |   .2751794   .0480403     5.73   0.000     .1809691    .3693896
   _Ieduc_55 |  -.0524416     .04665    -1.12   0.261    -.1439252    .0390421
   _Ieduc_56 |    .811213   .0482637    16.81   0.000     .7165648    .9058612
   _Ieduc_57 |   .0789334   .1566386     0.50   0.614    -.2282451    .3861119
   _Ieduc_63 |   .1506478   .1641326     0.92   0.359    -.1712269    .4725225
   _Ieduc_64 |   .1556055   .1620428     0.96   0.337     -.162171     .473382
   _Ieduc_65 |   .1814101   .0441524     4.11   0.000     .0948244    .2679958
   _Ieduc_66 |  -.2498762   .0599739    -4.17   0.000    -.3674889   -.1322635
   _Ieduc_72 |  -.0138978   .0767146    -0.18   0.856    -.1643402    .1365445
   _Ieduc_73 |   .3769941   .1073585     3.51   0.000     .1664571     .587531
   _Ieduc_74 |   .2238831   .0472986     4.73   0.000     .1311274    .3166388
   _Ieduc_75 |   .3636759   .0433009     8.40   0.000       .27876    .4485918
   _Ieduc_76 |   .4398016   .0728582     6.04   0.000     .2969219    .5826813
   _Ieduc_77 |    .429571   .0731538     5.87   0.000     .2861116    .5730303
   _Ieduc_83 |   .2884685    .053092     5.43   0.000     .1843516    .3925853
   _Ieduc_84 |   .3923221   .0541975     7.24   0.000     .2860372    .4986071
   _Ieduc_85 |   .4862121   .0501499     9.70   0.000     .3878649    .5845594
   _Ieduc_86 |   .5064574   .1001238     5.06   0.000     .3101081    .7028066
   _Ieduc_87 |   .4591681    .111318     4.12   0.000     .2408662      .67747
   _Ieduc_99 |  -.1421357   .0607324    -2.34   0.019    -.2612359   -.0230356
   _Inuts2_2 |  -.0726426   .0183454    -3.96   0.000    -.1086192   -.0366661
   _Inuts2_3 |  -.1087236   .0331601    -3.28   0.001    -.1737528   -.0436944
   _Inuts2_4 |  -.0629077   .0199475    -3.15   0.002    -.1020262   -.0237893
   _Inuts2_5 |    -.08731   .0282209    -3.09   0.002     -.142653   -.0319671
   _Inuts2_6 |   .4571547   .0837677     5.46   0.000     .2928808    .6214285
        pats |     .03535   .0075928     4.66   0.000     .0204601      .05024
       _cons |   6.724254   .2202252    30.53   0.000     6.292378     7.15613
------------------------------------------------------------------------------

. xi: reg logwage $expl_12, cluster(id);
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: _Ivuosi_1993 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_43 omitted because of collinearity

Linear regression                                      Number of obs =   14161
                                                       F( 82,  2126) =       .
                                                       Prob > F      =       .
                                                       R-squared     =  0.2832
                                                       Root MSE      =  .46563

                                  (Std. Err. adjusted for 2127 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .1101957   .0091984    11.98   0.000     .0921568    .1282345
        age2 |  -.0011242   .0001118   -10.06   0.000    -.0013434    -.000905
      tenure |   .0064271   .0013707     4.69   0.000      .003739    .0091151
      female |  -.2230814   .0234814    -9.50   0.000    -.2691303   -.1770324
      months |   .0539995   .0126106     4.28   0.000      .029269      .07873
         emp |   .0008146   .0002944     2.77   0.006     .0002373     .001392
_Ivuosi_1992 |   .0130271   .0109728     1.19   0.235    -.0084914    .0345457
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |   .0240591   .0098566     2.44   0.015     .0047295    .0433887
_Ivuosi_1995 |   .0569952   .0119988     4.75   0.000     .0334645    .0805258
_Ivuosi_1996 |   .0771599   .0121627     6.34   0.000     .0533079    .1010119
_Ivuosi_1997 |   .1116566   .0114266     9.77   0.000      .089248    .1340651
_Ivuosi_1998 |   .1768311   .0133993    13.20   0.000     .1505539    .2031082
_Ivuosi_1999 |   .2028397   .0192587    10.53   0.000     .1650719    .2406076
  _Isector_2 |    -.10386   .1503917    -0.69   0.490    -.3987901    .1910702
  _Isector_3 |          0  (omitted)
  _Isector_4 |   -.599558   .1369676    -4.38   0.000    -.8681625   -.3309534
  _Isector_5 |  -.3638007   .0843809    -4.31   0.000    -.5292785   -.1983229
  _Isector_6 |          0  (omitted)
  _Isector_7 |   -.270031   .1343165    -2.01   0.045    -.5334363   -.0066256
  _Isector_8 |  -.1735186   .3581219    -0.48   0.628    -.8758245    .5287874
  _Isector_9 |  -.3864202   .1446194    -2.67   0.008    -.6700303     -.10281
 _Isector_10 |   -.243878   .1049253    -2.32   0.020    -.4496449   -.0381111
 _Isector_11 |  -.7514416    .114186    -6.58   0.000    -.9753696   -.5275136
 _Isector_12 |  -.4261065   .0961289    -4.43   0.000     -.614623     -.23759
 _Isector_13 |  -.4193273   .0934704    -4.49   0.000    -.6026303   -.2360244
 _Isector_14 |  -.3199187   .1178636    -2.71   0.007    -.5510587   -.0887788
 _Isector_15 |  -.2245744   .1145619    -1.96   0.050    -.4492395    .0000908
 _Isector_16 |  -.4139202     .10142    -4.08   0.000    -.6128129   -.2150275
 _Isector_17 |  -.4278379   .0967175    -4.42   0.000    -.6175087    -.238167
 _Isector_18 |  -.3857499   .0931143    -4.14   0.000    -.5683546   -.2031452
 _Isector_19 |  -.3766907   .1027686    -3.67   0.000    -.5782282   -.1751531
 _Isector_20 |  -.4617653   .0976577    -4.73   0.000    -.6532799   -.2702507
 _Isector_21 |  -.3012876   .0954453    -3.16   0.002    -.4884636   -.1141116
 _Isector_22 |  -.3660056   .0937767    -3.90   0.000    -.5499092   -.1821019
 _Isector_23 |  -.4645137   .1290596    -3.60   0.000      -.71761   -.2114174
 _Isector_24 |   -.324742    .102381    -3.17   0.002    -.5255193   -.1239647
 _Isector_25 |  -.4386151   .1213017    -3.62   0.000    -.6764974   -.2007327
 _Isector_26 |  -.5344349   .1083788    -4.93   0.000    -.7469744   -.3218954
 _Isector_27 |  -.3810043   .1221955    -3.12   0.002    -.6206394   -.1413692
 _Isector_28 |  -.5341891   .1130602    -4.72   0.000    -.7559092    -.312469
 _Isector_29 |  -.4341305   .1198491    -3.62   0.000    -.6691642   -.1990968
 _Isector_30 |  -.6422352   .1234468    -5.20   0.000    -.8843243    -.400146
 _Isector_31 |  -.0723027   .5073529    -0.14   0.887    -1.067263    .9226572
 _Isector_32 |  -.4687724   .2295205    -2.04   0.041    -.9188805   -.0186643
 _Isector_33 |  -.5136271   .1176986    -4.36   0.000    -.7444435   -.2828107
 _Isector_34 |  -.3774773   .1566966    -2.41   0.016    -.6847719   -.0701827
 _Isector_35 |  -.3685932   .1203648    -3.06   0.002    -.6046382   -.1325481
 _Isector_36 |  -.5235562   .1034408    -5.06   0.000    -.7264119   -.3207005
 _Isector_37 |  -.5493519   .1640698    -3.35   0.001    -.8711059   -.2275979
 _Isector_38 |  -.5661954   .1255814    -4.51   0.000    -.8124706   -.3199201
 _Isector_39 |  -.0039186   .2707863    -0.01   0.988    -.5349524    .5271152
 _Isector_40 |  -.2641661   .1130225    -2.34   0.020    -.4858124   -.0425199
 _Isector_41 |  -.4503763   .1042187    -4.32   0.000    -.6547576    -.245995
 _Isector_42 |  -.3740976   .0951248    -3.93   0.000     -.560645   -.1875502
 _Isector_43 |          0  (omitted)
 _Isector_44 |  -.6044928   .1914371    -3.16   0.002    -.9799163   -.2290693
 _Isector_45 |  -.2179749   .2152118    -1.01   0.311    -.6400225    .2040727
 _Isector_46 |  -.4764168   .1053225    -4.52   0.000    -.6829627   -.2698708
   _Ieduc_32 |  -.1238689   .0746648    -1.66   0.097    -.2702926    .0225548
   _Ieduc_33 |  -.2273107   .0946157    -2.40   0.016    -.4128596   -.0417617
   _Ieduc_35 |  -.2237395    .058804    -3.80   0.000    -.3390588   -.1084202
   _Ieduc_36 |   .0246357   .3566171     0.07   0.945    -.6747192    .7239906
   _Ieduc_37 |  -.1432474   .3497469    -0.41   0.682    -.8291291    .5426343
   _Ieduc_38 |  -.7947383   .4063223    -1.96   0.051    -1.591569    .0020925
   _Ieduc_53 |   .1818183   .1506454     1.21   0.228    -.1136094     .477246
   _Ieduc_54 |    .262798   .0566793     4.64   0.000     .1516453    .3739506
   _Ieduc_55 |  -.0801531   .0535055    -1.50   0.134    -.1850818    .0247755
   _Ieduc_56 |   .8502101   .0807696    10.53   0.000     .6918143    1.008606
   _Ieduc_57 |   .0335377   .1616295     0.21   0.836    -.2834307     .350506
   _Ieduc_63 |    .098068   .1635338     0.60   0.549    -.2226349    .4187709
   _Ieduc_64 |   .1138062   .1836004     0.62   0.535    -.2462489    .4738613
   _Ieduc_65 |   .1564849   .0514125     3.04   0.002     .0556608     .257309
   _Ieduc_66 |  -.2755697   .0644233    -4.28   0.000     -.401909   -.1492304
   _Ieduc_72 |  -.0542467   .0885734    -0.61   0.540    -.2279462    .1194529
   _Ieduc_73 |   .3397552   .1135451     2.99   0.003      .117084    .5624263
   _Ieduc_74 |   .1959305   .0540531     3.62   0.000     .0899281     .301933
   _Ieduc_75 |   .3422376   .0505759     6.77   0.000     .2430542    .4414209
   _Ieduc_76 |   .4119725   .0776865     5.30   0.000      .259623     .564322
   _Ieduc_77 |   .3974628   .0766441     5.19   0.000     .2471576     .547768
   _Ieduc_83 |   .2528946   .0584934     4.32   0.000     .1381844    .3676048
   _Ieduc_84 |   .3641989    .059968     6.07   0.000     .2465969     .481801
   _Ieduc_85 |   .4675072   .0568842     8.22   0.000     .3559526    .5790618
   _Ieduc_86 |   .4869276   .1008992     4.83   0.000     .2890562    .6847991
   _Ieduc_87 |   .4004613    .118964     3.37   0.001     .1671634    .6337592
   _Ieduc_99 |  -.1673991   .0668921    -2.50   0.012      -.29858   -.0362183
   _Inuts2_2 |  -.0752362   .0191341    -3.93   0.000    -.1127596   -.0377127
   _Inuts2_3 |   -.116733   .0346147    -3.37   0.001    -.1846153   -.0488507
   _Inuts2_4 |  -.0664008   .0204872    -3.24   0.001    -.1065779   -.0262238
   _Inuts2_5 |  -.0938807    .029471    -3.19   0.001    -.1516756   -.0360857
   _Inuts2_6 |   .4322315   .0807323     5.35   0.000      .273909    .5905539
        pats |   .0308781   .0075016     4.12   0.000     .0161669    .0455893
     lagcits |   .0012461   .0008325     1.50   0.135    -.0003864    .0028787
       _cons |   7.432255    .278314    26.70   0.000     6.886459    7.978051
------------------------------------------------------------------------------

.  xi: reg logwage $expl_13, cluster(id);
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_43 omitted because of collinearity

Linear regression                                      Number of obs =   12357
                                                       F( 81,  2095) =       .
                                                       Prob > F      =       .
                                                       R-squared     =  0.2682
                                                       Root MSE      =  .46873

                                  (Std. Err. adjusted for 2096 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .1095747   .0102623    10.68   0.000     .0894493    .1297002
        age2 |   -.001115    .000123    -9.07   0.000    -.0013562   -.0008739
      tenure |   .0062716   .0014048     4.46   0.000     .0035166    .0090265
      female |  -.2200619   .0237894    -9.25   0.000    -.2667152   -.1734087
      months |   .0327476   .0113919     2.87   0.004     .0104071    .0550882
         emp |   .0007437   .0003227     2.30   0.021     .0001108    .0013766
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |   .0292124   .0099013     2.95   0.003     .0097951    .0486298
_Ivuosi_1995 |   .0629734   .0122733     5.13   0.000     .0389042    .0870426
_Ivuosi_1996 |   .0808478   .0123997     6.52   0.000     .0565308    .1051649
_Ivuosi_1997 |   .1125765   .0116876     9.63   0.000      .089656    .1354969
_Ivuosi_1998 |   .1802312   .0132401    13.61   0.000      .154266    .2061964
_Ivuosi_1999 |    .201127   .0195612    10.28   0.000     .1627656    .2394884
  _Isector_2 |  -.0796259   .1414809    -0.56   0.574    -.3570837    .1978319
  _Isector_3 |          0  (omitted)
  _Isector_4 |  -.5913553   .1328685    -4.45   0.000    -.8519234   -.3307873
  _Isector_5 |  -.3617024    .081149    -4.46   0.000    -.5208434   -.2025613
  _Isector_6 |          0  (omitted)
  _Isector_7 |  -.2546727   .1327777    -1.92   0.055    -.5150626    .0057171
  _Isector_8 |  -.1902204   .3615941    -0.53   0.599    -.8993416    .5189007
  _Isector_9 |  -.3843372   .1442565    -2.66   0.008    -.6672383   -.1014361
 _Isector_10 |  -.2255651   .1041088    -2.17   0.030    -.4297326   -.0213976
 _Isector_11 |  -.7631752   .1156531    -6.60   0.000    -.9899823   -.5363682
 _Isector_12 |  -.4108756   .0943676    -4.35   0.000    -.5959396   -.2258117
 _Isector_13 |  -.4023746    .091247    -4.41   0.000    -.5813189   -.2234303
 _Isector_14 |  -.3120462   .1192894    -2.62   0.009    -.5459844   -.0781081
 _Isector_15 |  -.2058824   .1133094    -1.82   0.069    -.4280931    .0163283
 _Isector_16 |  -.3889017   .1002276    -3.88   0.000    -.5854577   -.1923457
 _Isector_17 |  -.4007797   .0948643    -4.22   0.000    -.5868177   -.2147417
 _Isector_18 |  -.3695959   .0909095    -4.07   0.000    -.5478782   -.1913136
 _Isector_19 |  -.3628911   .0996387    -3.64   0.000    -.5582923   -.1674899
 _Isector_20 |  -.4449207    .096336    -4.62   0.000     -.633845   -.2559964
 _Isector_21 |  -.2745812   .0942919    -2.91   0.004    -.4594968   -.0896655
 _Isector_22 |  -.3583093   .0916693    -3.91   0.000    -.5380817   -.1785368
 _Isector_23 |  -.4619999   .1288933    -3.58   0.000    -.7147721   -.2092277
 _Isector_24 |  -.2907395   .1009261    -2.88   0.004    -.4886655   -.0928135
 _Isector_25 |   -.427437   .1217491    -3.51   0.000    -.6661988   -.1886753
 _Isector_26 |  -.5331073   .1084173    -4.92   0.000    -.7457241   -.3204904
 _Isector_27 |  -.3534413   .1158566    -3.05   0.002    -.5806474   -.1262352
 _Isector_28 |  -.4970519   .1083871    -4.59   0.000    -.7096095   -.2844943
 _Isector_29 |  -.4228851   .1203383    -3.51   0.000    -.6588803   -.1868899
 _Isector_30 |  -.6199574   .1261259    -4.92   0.000    -.8673025   -.3726123
 _Isector_31 |   .2776301   .4266522     0.65   0.515    -.5590762    1.114336
 _Isector_32 |   -.258042   .2384969    -1.08   0.279    -.7257575    .2096734
 _Isector_33 |  -.5097201    .121435    -4.20   0.000    -.7478658   -.2715743
 _Isector_34 |  -.3887544   .1742299    -2.23   0.026    -.7304361   -.0470727
 _Isector_35 |   -.353261   .1169809    -3.02   0.003     -.582672   -.1238501
 _Isector_36 |  -.4607111   .0913308    -5.04   0.000    -.6398197   -.2816025
 _Isector_37 |  -.5543795   .1673895    -3.31   0.001    -.8826466   -.2261124
 _Isector_38 |  -.5548732   .1215041    -4.57   0.000    -.7931544   -.3165919
 _Isector_39 |   .0014666   .2792014     0.01   0.996    -.5460744    .5490076
 _Isector_40 |  -.2545448   .1141981    -2.23   0.026    -.4784984   -.0305912
 _Isector_41 |  -.4300485   .1025078    -4.20   0.000    -.6310762   -.2290208
 _Isector_42 |  -.3486054   .0934405    -3.73   0.000    -.5318514   -.1653595
 _Isector_43 |          0  (omitted)
 _Isector_44 |  -.5841854   .1906493    -3.06   0.002    -.9580672   -.2103036
 _Isector_45 |  -.2025223   .2124797    -0.95   0.341    -.6192156    .2141711
 _Isector_46 |  -.4417659   .1041677    -4.24   0.000    -.6460489   -.2374829
   _Ieduc_32 |  -.1471568   .0793365    -1.85   0.064    -.3027433    .0084297
   _Ieduc_33 |  -.2518098   .0953014    -2.64   0.008     -.438705   -.0649145
   _Ieduc_35 |  -.2367876   .0631184    -3.75   0.000    -.3605689   -.1130063
   _Ieduc_36 |  -.0309617   .3503481    -0.09   0.930    -.7180282    .6561048
   _Ieduc_37 |  -.1580641   .3466608    -0.46   0.648    -.8378995    .5217713
   _Ieduc_38 |  -.9872412    .338787    -2.91   0.004    -1.651635    -.322847
   _Ieduc_53 |   .1990321   .1509018     1.32   0.187    -.0969009    .4949651
   _Ieduc_54 |   .2708044   .0613146     4.42   0.000     .1505605    .3910483
   _Ieduc_55 |  -.0898166   .0577879    -1.55   0.120    -.2031443     .023511
   _Ieduc_56 |   .7928598   .0709601    11.17   0.000     .6537002    .9320194
   _Ieduc_57 |   .0102852   .1670097     0.06   0.951    -.3172371    .3378075
   _Ieduc_63 |   .0725382   .1716973     0.42   0.673    -.2641768    .4092531
   _Ieduc_64 |   .2074471   .1627494     1.27   0.203    -.1117203    .5266145
   _Ieduc_65 |    .145124   .0557089     2.61   0.009     .0358734    .2543746
   _Ieduc_66 |  -.2877676   .0680681    -4.23   0.000    -.4212557   -.1542795
   _Ieduc_72 |  -.0900423   .0964687    -0.93   0.351    -.2792268    .0991421
   _Ieduc_73 |   .3413057   .1193139     2.86   0.004     .1073196    .5752918
   _Ieduc_74 |   .1742948   .0585044     2.98   0.003     .0595619    .2890277
   _Ieduc_75 |   .3322069   .0547806     6.06   0.000     .2247767     .439637
   _Ieduc_76 |   .4013145   .0803181     5.00   0.000     .2438029    .5588262
   _Ieduc_77 |   .3903574   .0822429     4.75   0.000      .229071    .5516437
   _Ieduc_83 |   .2349867   .0638736     3.68   0.000     .1097244    .3602491
   _Ieduc_84 |   .3532057   .0644295     5.48   0.000     .2268533    .4795582
   _Ieduc_85 |   .4583608   .0612504     7.48   0.000     .3382427    .5784788
   _Ieduc_86 |   .4918065   .1006617     4.89   0.000     .2943991     .689214
   _Ieduc_87 |    .366081   .1261162     2.90   0.004     .1187549    .6134071
   _Ieduc_99 |  -.1931188   .0713645    -2.71   0.007    -.3330716   -.0531661
   _Inuts2_2 |   -.077612   .0201891    -3.84   0.000    -.1172048   -.0380193
   _Inuts2_3 |  -.1142209   .0362442    -3.15   0.002    -.1852992   -.0431425
   _Inuts2_4 |  -.0681268   .0211608    -3.22   0.001    -.1096251   -.0266285
   _Inuts2_5 |  -.0999749   .0311068    -3.21   0.001    -.1609783   -.0389715
   _Inuts2_6 |   .4376178   .0852498     5.13   0.000     .2704346    .6048009
        pats |   .0326486   .0081103     4.03   0.000     .0167435    .0485537
     lagcits |   .0010605   .0008115     1.31   0.191    -.0005309    .0026519
     lagcit2 |   .0009994   .0008441     1.18   0.237    -.0006559    .0026548
       _cons |   7.691138   .2820569    27.27   0.000     7.137997    8.244279
------------------------------------------------------------------------------

. xi: reg logwage $expl_14, cluster(id);
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_43 omitted because of collinearity

Linear regression                                      Number of obs =   10572
                                                       F( 81,  2053) =       .
                                                       Prob > F      =       .
                                                       R-squared     =  0.2580
                                                       Root MSE      =  .47417

                                  (Std. Err. adjusted for 2054 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .1096259   .0113641     9.65   0.000     .0873395    .1319123
        age2 |  -.0011169   .0001359    -8.22   0.000    -.0013834   -.0008504
      tenure |   .0064413   .0014834     4.34   0.000     .0035321    .0093504
      female |  -.2321529   .0256101    -9.06   0.000    -.2823774   -.1819284
      months |   .0284246   .0118212     2.40   0.016     .0052418    .0516073
         emp |   .0005877   .0003467     1.69   0.090    -.0000923    .0012677
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |  -.1725978   .0176821    -9.76   0.000    -.2072745   -.1379211
_Ivuosi_1995 |  -.1348106   .0180897    -7.45   0.000    -.1702867   -.0993345
_Ivuosi_1996 |  -.1191799   .0188885    -6.31   0.000    -.1562224   -.0821374
_Ivuosi_1997 |  -.0863023   .0166917    -5.17   0.000    -.1190367   -.0535679
_Ivuosi_1998 |  -.0209335   .0160835    -1.30   0.193    -.0524751    .0106081
_Ivuosi_1999 |          0  (omitted)
  _Isector_2 |  -.0617133   .1333709    -0.46   0.644    -.3232696    .1998431
  _Isector_3 |          0  (omitted)
  _Isector_4 |  -.5870725   .1287535    -4.56   0.000    -.8395736   -.3345715
  _Isector_5 |  -.3546792   .0799142    -4.44   0.000    -.5114006   -.1979579
  _Isector_6 |          0  (omitted)
  _Isector_7 |  -.2297204   .1313979    -1.75   0.081    -.4874075    .0279667
  _Isector_8 |  -.2128166   .3521933    -0.60   0.546      -.90351    .4778767
  _Isector_9 |  -.3264386   .1510688    -2.16   0.031    -.6227028   -.0301745
 _Isector_10 |  -.1971229   .1066282    -1.85   0.065    -.4062337    .0119879
 _Isector_11 |  -.7594319   .1176894    -6.45   0.000     -.990235   -.5286289
 _Isector_12 |  -.3949424   .0956263    -4.13   0.000     -.582477   -.2074078
 _Isector_13 |  -.3730848   .0912924    -4.09   0.000    -.5521201   -.1940496
 _Isector_14 |  -.2788881   .1199757    -2.32   0.020    -.5141749   -.0436013
 _Isector_15 |  -.1777065   .1164324    -1.53   0.127    -.4060444    .0506314
 _Isector_16 |  -.3603999   .1013832    -3.55   0.000    -.5592247   -.1615752
 _Isector_17 |  -.3892232   .0957613    -4.06   0.000    -.5770226   -.2014238
 _Isector_18 |  -.3408145    .091167    -3.74   0.000     -.519604    -.162025
 _Isector_19 |  -.3276594   .0997278    -3.29   0.001    -.5232375   -.1320812
 _Isector_20 |  -.4184039   .0977507    -4.28   0.000    -.6101047   -.2267031
 _Isector_21 |  -.2299303    .095704    -2.40   0.016    -.4176174   -.0422433
 _Isector_22 |  -.3409846   .0918488    -3.71   0.000    -.5211112    -.160858
 _Isector_23 |  -.4399986   .1323101    -3.33   0.001    -.6994746   -.1805226
 _Isector_24 |  -.2584771   .1042296    -2.48   0.013    -.4628839   -.0540702
 _Isector_25 |  -.4103391   .1243205    -3.30   0.001    -.6541465   -.1665318
 _Isector_26 |  -.5200012   .1100094    -4.73   0.000    -.7357429   -.3042595
 _Isector_27 |   -.335371   .1140101    -2.94   0.003    -.5589585   -.1117835
 _Isector_28 |  -.4561983   .1074856    -4.24   0.000    -.6669904   -.2454061
 _Isector_29 |  -.3999206   .1232461    -3.24   0.001    -.6416211   -.1582201
 _Isector_30 |  -.5649966   .1280745    -4.41   0.000    -.8161662   -.3138271
 _Isector_31 |    .265416   .4549061     0.58   0.560    -.6267095    1.157541
 _Isector_32 |  -.3008081   .2074551    -1.45   0.147    -.7076525    .1060363
 _Isector_33 |  -.5018138   .1242903    -4.04   0.000    -.7455619   -.2580656
 _Isector_34 |  -.3995419   .2065997    -1.93   0.053    -.8047087     .005625
 _Isector_35 |   -.323244   .1170955    -2.76   0.006    -.5528824   -.0936056
 _Isector_36 |  -.4337142   .0918985    -4.72   0.000    -.6139381   -.2534902
 _Isector_37 |  -.5420027   .1737008    -3.12   0.002    -.8826509   -.2013545
 _Isector_38 |  -.5080382   .1300041    -3.91   0.000    -.7629918   -.2530846
 _Isector_39 |   .2514851   .1840497     1.37   0.172    -.1094585    .6124287
 _Isector_40 |  -.2467965   .1212701    -2.04   0.042    -.4846216   -.0089713
 _Isector_41 |  -.4044112   .1032815    -3.92   0.000    -.6069586   -.2018638
 _Isector_42 |  -.3195186   .0937507    -3.41   0.001    -.5033749   -.1356623
 _Isector_43 |          0  (omitted)
 _Isector_44 |  -.5548815   .1926696    -2.88   0.004    -.9327298   -.1770332
 _Isector_45 |   -.212118   .2003056    -1.06   0.290    -.6049414    .1807053
 _Isector_46 |   -.411283   .1048165    -3.92   0.000    -.6168407   -.2057252
   _Ieduc_32 |  -.1623335   .0810284    -2.00   0.045    -.3212399   -.0034271
   _Ieduc_33 |  -.2919252    .091277    -3.20   0.001    -.4709303     -.11292
   _Ieduc_35 |   -.257738   .0624422    -4.13   0.000    -.3801946   -.1352814
   _Ieduc_36 |  -.1291648   .3514563    -0.37   0.713    -.8184129    .5600833
   _Ieduc_37 |  -.1571769   .3565499    -0.44   0.659     -.856414    .5420603
   _Ieduc_38 |  -1.056923   .3398268    -3.11   0.002    -1.723364   -.3904822
   _Ieduc_53 |    .215519   .1520096     1.42   0.156    -.0825902    .5136281
   _Ieduc_54 |   .2978145   .0599148     4.97   0.000     .1803144    .4153146
   _Ieduc_55 |  -.1081967   .0567553    -1.91   0.057    -.2195007    .0031072
   _Ieduc_56 |   .7717975   .0705238    10.94   0.000     .6334919     .910103
   _Ieduc_57 |  -.0343552   .1726935    -0.20   0.842    -.3730278    .3043174
   _Ieduc_63 |   .0575669   .1776936     0.32   0.746    -.2909116    .4060455
   _Ieduc_64 |   .1892701   .1970484     0.96   0.337    -.1971656    .5757057
   _Ieduc_65 |   .1261554   .0541932     2.33   0.020      .019876    .2324349
   _Ieduc_66 |  -.3012727   .0694845    -4.34   0.000    -.4375402   -.1650052
   _Ieduc_72 |  -.1381282   .1052411    -1.31   0.190    -.3445187    .0682622
   _Ieduc_73 |   .3231132   .1228141     2.63   0.009     .0822601    .5639663
   _Ieduc_74 |   .1518254   .0578077     2.63   0.009     .0384575    .2651933
   _Ieduc_75 |   .3131185   .0527207     5.94   0.000     .2097269    .4165101
   _Ieduc_76 |   .4008366   .0787328     5.09   0.000     .2464321     .555241
   _Ieduc_77 |   .3709281    .084425     4.39   0.000     .2053606    .5364956
   _Ieduc_83 |   .1308844   .0721438     1.81   0.070    -.0105983    .2723671
   _Ieduc_84 |   .3359556   .0654879     5.13   0.000      .207526    .4643851
   _Ieduc_85 |   .4504825    .060185     7.48   0.000     .3324525    .5685124
   _Ieduc_86 |   .4971415   .0987714     5.03   0.000      .303439    .6908441
   _Ieduc_87 |    .340014   .1333916     2.55   0.011      .078417     .601611
   _Ieduc_99 |  -.2188919   .0722883    -3.03   0.002     -.360658   -.0771258
   _Inuts2_2 |  -.0835248   .0213453    -3.91   0.000    -.1253855   -.0416641
   _Inuts2_3 |    -.11091   .0386351    -2.87   0.004    -.1866781   -.0351419
   _Inuts2_4 |  -.0725916   .0220656    -3.29   0.001    -.1158648   -.0293184
   _Inuts2_5 |  -.1072475   .0336313    -3.19   0.001    -.1732024   -.0412925
   _Inuts2_6 |   .4301493   .0865657     4.97   0.000     .2603835    .5999151
        pats |   .0302636    .008797     3.44   0.001     .0130117    .0475155
     lagcits |   .0009749   .0008996     1.08   0.279    -.0007892    .0027391
     lagcit2 |   .0007215   .0007777     0.93   0.354    -.0008036    .0022465
     lagcit3 |   .0012866   .0013425     0.96   0.338    -.0013461    .0039194
       _cons |   7.939366   .2922065    27.17   0.000     7.366314    8.512418
------------------------------------------------------------------------------

. xi: reg logwage $expl_15, cluster(id);
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity

Linear regression                                      Number of obs =    8612
                                                       F( 81,  1967) =       .
                                                       Prob > F      =       .
                                                       R-squared     =  0.2420
                                                       Root MSE      =   .4884

                                  (Std. Err. adjusted for 1968 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |    .106979   .0134277     7.97   0.000      .080645     .133313
        age2 |  -.0010811   .0001583    -6.83   0.000    -.0013916   -.0007707
      tenure |   .0062489   .0015326     4.08   0.000     .0032431    .0092546
      female |  -.2302423   .0275692    -8.35   0.000    -.2843102   -.1761745
      months |   .0309268   .0094284     3.28   0.001     .0124361    .0494176
         emp |   .0004409   .0003821     1.15   0.249    -.0003084    .0011902
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |          0  (omitted)
_Ivuosi_1995 |          0  (omitted)
_Ivuosi_1996 |   .0186259   .0088889     2.10   0.036     .0011934    .0360585
_Ivuosi_1997 |   .0528876   .0101857     5.19   0.000     .0329117    .0728635
_Ivuosi_1998 |     .11453   .0114237    10.03   0.000     .0921261    .1369339
_Ivuosi_1999 |   .1342312   .0185009     7.26   0.000     .0979478    .1705146
  _Isector_2 |  -.0531258   .1281171    -0.41   0.678    -.3043853    .1981337
  _Isector_3 |          0  (omitted)
  _Isector_4 |  -.5560824   .1276836    -4.36   0.000    -.8064918   -.3056731
  _Isector_5 |  -.3441835   .0812436    -4.24   0.000    -.5035161    -.184851
  _Isector_6 |          0  (omitted)
  _Isector_7 |  -.2359663   .1341985    -1.76   0.079    -.4991524    .0272198
  _Isector_8 |  -.2194444   .3563578    -0.62   0.538    -.9183229     .479434
  _Isector_9 |  -.3488627   .1627573    -2.14   0.032    -.6680575   -.0296679
 _Isector_10 |  -.1729706   .1100031    -1.57   0.116    -.3887054    .0427642
 _Isector_11 |  -.7806202    .113577    -6.87   0.000    -1.003364   -.5578763
 _Isector_12 |   -.373159   .0968281    -3.85   0.000    -.5630554   -.1832625
 _Isector_13 |  -.3616253   .0927302    -3.90   0.000    -.5434851   -.1797656
 _Isector_14 |  -.2856667   .1198656    -2.38   0.017    -.5207435   -.0505898
 _Isector_15 |  -.1729355   .1204772    -1.44   0.151    -.4092118    .0633407
 _Isector_16 |  -.3297437   .1029586    -3.20   0.001     -.531663   -.1278244
 _Isector_17 |  -.3691061   .0973229    -3.79   0.000    -.5599728   -.1782393
 _Isector_18 |  -.3242433   .0924964    -3.51   0.000    -.5056446    -.142842
 _Isector_19 |  -.3104113   .1026556    -3.02   0.003    -.5117364   -.1090861
 _Isector_20 |  -.4013867   .0998016    -4.02   0.000    -.5971146   -.2056587
 _Isector_21 |  -.1819272   .0984552    -1.85   0.065    -.3750148    .0111603
 _Isector_22 |  -.3371429   .0927685    -3.63   0.000    -.5190777   -.1552081
 _Isector_23 |  -.4348552   .1457908    -2.98   0.003    -.7207758   -.1489345
 _Isector_24 |  -.2659472   .1075632    -2.47   0.014    -.4768971   -.0549973
 _Isector_25 |  -.4003278   .1251044    -3.20   0.001    -.6456789   -.1549768
 _Isector_26 |  -.5122332   .1116795    -4.59   0.000    -.7312557   -.2932108
 _Isector_27 |  -.2919602   .1129584    -2.58   0.010     -.513491   -.0704294
 _Isector_28 |  -.4354286   .1110798    -3.92   0.000    -.6532751   -.2175821
 _Isector_29 |  -.3781548    .125669    -3.01   0.003    -.6246131   -.1316965
 _Isector_30 |  -.5684708   .1294312    -4.39   0.000    -.8223075   -.3146341
 _Isector_31 |    .791115   .2475709     3.20   0.001     .3055861    1.276644
 _Isector_32 |  -.3002539    .153853    -1.95   0.051    -.6019859     .001478
 _Isector_33 |  -.4786507   .1316915    -3.63   0.000    -.7369201   -.2203812
 _Isector_34 |  -.4240322   .2398528    -1.77   0.077    -.8944244      .04636
 _Isector_35 |  -.2990288   .1223828    -2.44   0.015    -.5390423   -.0590153
 _Isector_36 |  -.4128462   .0934081    -4.42   0.000    -.5960353    -.229657
 _Isector_37 |  -.5325956   .1774899    -3.00   0.003    -.8806837   -.1845076
 _Isector_38 |  -.4780049   .1420359    -3.37   0.001    -.7565615   -.1994483
 _Isector_39 |   .2696862   .1820646     1.48   0.139    -.0873735     .626746
 _Isector_40 |  -.2254822   .1260934    -1.79   0.074    -.4727728    .0218084
 _Isector_41 |  -.3904931   .1049517    -3.72   0.000    -.5963214   -.1846649
 _Isector_42 |  -.3080046   .0955375    -3.22   0.001    -.4953701   -.1206392
 _Isector_43 |          0  (omitted)
 _Isector_44 |    -.54477   .2059482    -2.65   0.008    -.9486697   -.1408704
 _Isector_45 |  -.2223409   .1900643    -1.17   0.242    -.5950895    .1504077
 _Isector_46 |  -.4063792   .1102053    -3.69   0.000    -.6225107   -.1902477
   _Ieduc_32 |  -.1706701   .0936169    -1.82   0.068    -.3542687    .0129286
   _Ieduc_33 |  -.3167832   .0970362    -3.26   0.001    -.5070878   -.1264786
   _Ieduc_35 |  -.2577717   .0673477    -3.83   0.000     -.389852   -.1256913
   _Ieduc_36 |  -.1399151   .3573943    -0.39   0.695    -.8408263    .5609961
   _Ieduc_37 |  -.1293316   .3952051    -0.33   0.744    -.9043963    .6457331
   _Ieduc_38 |  -1.335939    .234872    -5.69   0.000    -1.796563   -.8753147
   _Ieduc_53 |   .2257459   .1560317     1.45   0.148     -.080259    .5317508
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |  -.1174547   .0623446    -1.88   0.060    -.2397231    .0048137
   _Ieduc_56 |   .7505367    .078179     9.60   0.000     .5972143    .9038591
   _Ieduc_57 |  -.0500094   .1877752    -0.27   0.790    -.4182687    .3182499
   _Ieduc_63 |   .0149112   .1970275     0.08   0.940    -.3714934    .4013158
   _Ieduc_64 |    .153085   .2165479     0.71   0.480    -.2716025    .5777725
   _Ieduc_65 |   .1227009    .060255     2.04   0.042     .0045306    .2408711
   _Ieduc_66 |    -.29446   .0762262    -3.86   0.000    -.4439525   -.1449675
   _Ieduc_72 |  -.1713712   .1226805    -1.40   0.163    -.4119686    .0692262
   _Ieduc_73 |   .3336558   .1399539     2.38   0.017     .0591822    .6081294
   _Ieduc_74 |   .1471804    .064124     2.30   0.022     .0214222    .2729386
   _Ieduc_75 |   .3133524   .0587753     5.33   0.000     .1980841    .4286207
   _Ieduc_76 |   .4089514   .0887438     4.61   0.000     .2349097    .5829932
   _Ieduc_77 |   .3704356   .0937493     3.95   0.000     .1865771     .554294
   _Ieduc_83 |   .0982908   .0931917     1.05   0.292    -.0844741    .2810556
   _Ieduc_84 |   .3366047   .0715279     4.71   0.000     .1963262    .4768832
   _Ieduc_85 |   .4525779   .0662768     6.83   0.000     .3225978    .5825579
   _Ieduc_86 |    .511828   .1024738     4.99   0.000     .3108595    .7127965
   _Ieduc_87 |   .3571504   .1464491     2.44   0.015     .0699387     .644362
   _Ieduc_99 |  -.2198391   .0793007    -2.77   0.006    -.3753614   -.0643168
   _Inuts2_2 |  -.0822647   .0227699    -3.61   0.000    -.1269205    -.037609
   _Inuts2_3 |  -.1133957   .0396632    -2.86   0.004    -.1911821   -.0356093
   _Inuts2_4 |  -.0720337   .0232799    -3.09   0.002    -.1176896   -.0263778
   _Inuts2_5 |  -.1262996    .036924    -3.42   0.001    -.1987139   -.0538854
   _Inuts2_6 |   .4476933   .0858181     5.22   0.000     .2793895    .6159972
        pats |   .0338506   .0097106     3.49   0.001     .0148064    .0528948
     lagcits |   .0007638   .0010411     0.73   0.463    -.0012779    .0028055
     lagcit2 |   .0005285   .0009165     0.58   0.564    -.0012689    .0023259
     lagcit3 |   .0009856    .001394     0.71   0.480    -.0017483    .0037196
     lagcit4 |     .00228   .0010223     2.23   0.026     .0002752    .0042849
       _cons |   7.805301   .3221863    24.23   0.000     7.173439    8.437164
------------------------------------------------------------------------------

. xi: reg logwage $expl_16, cluster(id);
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity

Linear regression                                      Number of obs =    6746
                                                       F( 81,  1886) =       .
                                                       Prob > F      =       .
                                                       R-squared     =  0.2332
                                                       Root MSE      =  .50415

                                  (Std. Err. adjusted for 1887 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .1090611   .0160841     6.78   0.000     .0775167    .1406055
        age2 |     -.0011   .0001866    -5.90   0.000    -.0014659   -.0007341
      tenure |   .0059434   .0015946     3.73   0.000      .002816    .0090708
      female |  -.2210931   .0299839    -7.37   0.000    -.2798983   -.1622879
      months |   .0313062   .0102095     3.07   0.002      .011283    .0513293
         emp |   .0004889   .0004041     1.21   0.226    -.0003036    .0012814
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |          0  (omitted)
_Ivuosi_1995 |          0  (omitted)
_Ivuosi_1996 |  -.1099302   .0193287    -5.69   0.000     -.147838   -.0720224
_Ivuosi_1997 |  -.0799786   .0174455    -4.58   0.000    -.1141931   -.0457641
_Ivuosi_1998 |  -.0185764   .0166878    -1.11   0.266     -.051305    .0141521
_Ivuosi_1999 |          0  (omitted)
  _Isector_2 |  -.0212058   .1105406    -0.19   0.848    -.2380005    .1955889
  _Isector_3 |          0  (omitted)
  _Isector_4 |  -.5243365   .1316548    -3.98   0.000    -.7825408   -.2661322
  _Isector_5 |  -.3467576   .0746633    -4.64   0.000    -.4931889   -.2003262
  _Isector_6 |          0  (omitted)
  _Isector_7 |  -.2014526   .1315945    -1.53   0.126    -.4595387    .0566335
  _Isector_8 |  -.1938126   .3614351    -0.54   0.592    -.9026672     .515042
  _Isector_9 |  -.3722617    .160883    -2.31   0.021     -.687789   -.0567344
 _Isector_10 |  -.1407033   .1065704    -1.32   0.187    -.3497116     .068305
 _Isector_11 |  -.7961648   .1092002    -7.29   0.000    -1.010331   -.5819989
 _Isector_12 |   -.362673   .0950606    -3.82   0.000     -.549108    -.176238
 _Isector_13 |  -.3338133   .0896087    -3.73   0.000    -.5095558   -.1580708
 _Isector_14 |  -.2696608   .1147258    -2.35   0.019    -.4946637    -.044658
 _Isector_15 |  -.1347358   .1201211    -1.12   0.262    -.3703201    .1008485
 _Isector_16 |  -.3011037   .1008969    -2.98   0.003     -.498985   -.1032223
 _Isector_17 |  -.3268813   .0941777    -3.47   0.001    -.5115847   -.1421779
 _Isector_18 |  -.3018922   .0886296    -3.41   0.001    -.4757145   -.1280699
 _Isector_19 |  -.2635241   .1037477    -2.54   0.011    -.4669965   -.0600518
 _Isector_20 |  -.3552471    .094344    -3.77   0.000    -.5402766   -.1702175
 _Isector_21 |  -.1253058   .0963988    -1.30   0.194    -.3143652    .0637537
 _Isector_22 |  -.3151583   .0889958    -3.54   0.000    -.4896989   -.1406177
 _Isector_23 |  -.3470023   .1259223    -2.76   0.006     -.593964   -.1000406
 _Isector_24 |  -.2593363   .1078141    -2.41   0.016    -.4707838   -.0478888
 _Isector_25 |   -.382588   .1244859    -3.07   0.002    -.6267325   -.1384434
 _Isector_26 |  -.4889944   .1112319    -4.40   0.000    -.7071448    -.270844
 _Isector_27 |  -.2420098   .1101505    -2.20   0.028    -.4580395   -.0259801
 _Isector_28 |  -.4058206   .1120993    -3.62   0.000    -.6256723   -.1859689
 _Isector_29 |  -.3444654   .1284686    -2.68   0.007     -.596421   -.0925099
 _Isector_30 |   -.585538   .1351075    -4.33   0.000    -.8505139    -.320562
 _Isector_31 |   .9239534   .3276286     2.82   0.005     .2814006    1.566506
 _Isector_32 |    -.38556   .1023891    -3.77   0.000    -.5863678   -.1847523
 _Isector_33 |  -.4381415   .1546816    -2.83   0.005    -.7415065   -.1347766
 _Isector_34 |  -.4628712   .2947377    -1.57   0.116    -1.040917    .1151751
 _Isector_35 |  -.2439451   .1203721    -2.03   0.043    -.4800216   -.0078686
 _Isector_36 |  -.3819931   .0899203    -4.25   0.000    -.5583468   -.2056395
 _Isector_37 |  -.5228941   .1847686    -2.83   0.005    -.8852665   -.1605216
 _Isector_38 |  -.4381157    .153426    -2.86   0.004    -.7390182   -.1372132
 _Isector_39 |   .3012677    .180218     1.67   0.095    -.0521799    .6547154
 _Isector_40 |  -.2251454    .138815    -1.62   0.105    -.4973926    .0471018
 _Isector_41 |  -.3584175   .1035538    -3.46   0.001    -.5615096   -.1553254
 _Isector_42 |  -.2817013   .0931869    -3.02   0.003    -.4644616   -.0989411
 _Isector_43 |          0  (omitted)
 _Isector_44 |  -.4983354   .2365105    -2.11   0.035    -.9621852   -.0344857
 _Isector_45 |  -.2236505    .183862    -1.22   0.224    -.5842449    .1369438
 _Isector_46 |  -.3824297   .1161314    -3.29   0.001    -.6101892   -.1546701
   _Ieduc_32 |  -.1577733    .109246    -1.44   0.149    -.3720292    .0564825
   _Ieduc_33 |  -.2923254   .1239625    -2.36   0.018    -.5354435   -.0492073
   _Ieduc_35 |  -.2425856    .073639    -3.29   0.001    -.3870081   -.0981631
   _Ieduc_36 |   -.112643   .3637333    -0.31   0.757    -.8260049     .600719
   _Ieduc_37 |  -.1120157   .3910455    -0.29   0.775    -.8789429    .6549115
   _Ieduc_38 |    -1.4383   .3195616    -4.50   0.000    -2.065032   -.8115689
   _Ieduc_53 |   .2735831   .1681113     1.63   0.104    -.0561206    .6032868
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |  -.0994121   .0688443    -1.44   0.149     -.234431    .0356069
   _Ieduc_56 |   .7835101   .0859861     9.11   0.000     .6148722    .9521479
   _Ieduc_57 |  -.0514719   .2141125    -0.24   0.810    -.4713942    .3684504
   _Ieduc_63 |  -.0091337   .2254186    -0.04   0.968    -.4512297    .4329624
   _Ieduc_64 |    .188786   .2044988     0.92   0.356    -.2122817    .5898537
   _Ieduc_65 |   .1433158   .0672468     2.13   0.033     .0114299    .2752017
   _Ieduc_66 |  -.3089505   .0860925    -3.59   0.000     -.477797   -.1401041
   _Ieduc_72 |  -.1656297   .1499231    -1.10   0.269    -.4596623    .1284028
   _Ieduc_73 |   .3372887    .152854     2.21   0.027      .037508    .6370693
   _Ieduc_74 |   .1528736   .0723705     2.11   0.035     .0109389    .2948083
   _Ieduc_75 |   .3382352   .0660905     5.12   0.000     .2086171    .4678534
   _Ieduc_76 |   .4636089   .1003925     4.62   0.000     .2667168    .6605009
   _Ieduc_77 |    .398253   .1095084     3.64   0.000     .1834826    .6130234
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |   .3528292   .0794108     4.44   0.000     .1970869    .5085714
   _Ieduc_85 |   .4810048    .073612     6.53   0.000     .3366352    .6253743
   _Ieduc_86 |    .560403   .1030783     5.44   0.000     .3582435    .7625625
   _Ieduc_87 |   .3637748   .1756739     2.07   0.039      .019239    .7083105
   _Ieduc_99 |  -.2030457   .0881452    -2.30   0.021     -.375918   -.0301734
   _Inuts2_2 |  -.0814561   .0246202    -3.31   0.001    -.1297418   -.0331704
   _Inuts2_3 |  -.1183984   .0422439    -2.80   0.005    -.2012482   -.0355486
   _Inuts2_4 |  -.0770212   .0250249    -3.08   0.002    -.1261007   -.0279417
   _Inuts2_5 |  -.1271623   .0390931    -3.25   0.001    -.2038327    -.050492
   _Inuts2_6 |   .4606119   .0836376     5.51   0.000       .29658    .6246438
        pats |   .0364983   .0112544     3.24   0.001      .014426    .0585706
     lagcits |   .0005904   .0010601     0.56   0.578    -.0014887    .0026695
     lagcit2 |    .001309   .0008468     1.55   0.122    -.0003518    .0029698
     lagcit3 |   .0009342   .0017157     0.54   0.586    -.0024307    .0042991
     lagcit4 |   .0023327   .0011281     2.07   0.039     .0001202    .0045453
     lagcit5 |   .0013548   .0012399     1.09   0.275    -.0010768    .0037865
       _cons |   7.826154   .3773925    20.74   0.000     7.086004    8.566305
------------------------------------------------------------------------------

. xi: reg logwage $expl_17, cluster(id);
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Ivuosi_1996 omitted because of collinearity
note: _Ivuosi_1997 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_32 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_66 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity

Linear regression                                      Number of obs =    4938
                                                       F( 79,  1788) =       .
                                                       Prob > F      =       .
                                                       R-squared     =  0.2350
                                                       Root MSE      =  .52573

                                  (Std. Err. adjusted for 1789 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .1113461   .0207293     5.37   0.000     .0706899    .1520023
        age2 |  -.0011256   .0002374    -4.74   0.000    -.0015911     -.00066
      tenure |   .0062019   .0017061     3.64   0.000     .0028558    .0095479
      female |  -.2235641   .0348161    -6.42   0.000    -.2918486   -.1552796
      months |   .0182519   .0065272     2.80   0.005     .0054502    .0310536
         emp |   .0006818   .0004596     1.48   0.138    -.0002197    .0015832
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |          0  (omitted)
_Ivuosi_1995 |          0  (omitted)
_Ivuosi_1996 |          0  (omitted)
_Ivuosi_1997 |          0  (omitted)
_Ivuosi_1998 |   .0582315   .0085232     6.83   0.000      .041515     .074948
_Ivuosi_1999 |   .0780623   .0172965     4.51   0.000     .0441389    .1119857
  _Isector_2 |   .0307859   .0885093     0.35   0.728    -.1428066    .2043784
  _Isector_3 |          0  (omitted)
  _Isector_4 |  -.4529428   .1233721    -3.67   0.000    -.6949115   -.2109741
  _Isector_5 |  -.3668508   .0702463    -5.22   0.000    -.5046243   -.2290772
  _Isector_6 |          0  (omitted)
  _Isector_7 |  -.1884067   .1324893    -1.42   0.155    -.4482569    .0714436
  _Isector_8 |  -.1795998   .3658705    -0.49   0.624    -.8971786    .5379789
  _Isector_9 |  -.3964494   .1728468    -2.29   0.022    -.7354525   -.0574464
 _Isector_10 |  -.1357641    .104195    -1.30   0.193    -.3401208    .0685927
 _Isector_11 |  -.7912747   .1107464    -7.14   0.000    -1.008481   -.5740687
 _Isector_12 |   -.392141    .096964    -4.04   0.000    -.5823158   -.2019662
 _Isector_13 |  -.3263526   .0871725    -3.74   0.000    -.4973233   -.1553819
 _Isector_14 |  -.2534416   .1097747    -2.31   0.021    -.4687419   -.0381413
 _Isector_15 |  -.1187143   .1236072    -0.96   0.337    -.3611441    .1237155
 _Isector_16 |  -.2998718   .1001492    -2.99   0.003    -.4962935   -.1034501
 _Isector_17 |  -.3135534   .0929157    -3.37   0.001    -.4957882   -.1313185
 _Isector_18 |  -.3047101   .0862904    -3.53   0.000    -.4739507   -.1354695
 _Isector_19 |  -.2202746   .1061639    -2.07   0.038     -.428493   -.0120563
 _Isector_20 |  -.3261875   .0936109    -3.48   0.001    -.5097858   -.1425892
 _Isector_21 |  -.0715793   .0969385    -0.74   0.460     -.261704    .1185453
 _Isector_22 |  -.2981986   .0861929    -3.46   0.001    -.4672479   -.1291492
 _Isector_23 |  -.3389111   .1353609    -2.50   0.012    -.6043933    -.073429
 _Isector_24 |  -.2738948    .113856    -2.41   0.016    -.4971995     -.05059
 _Isector_25 |  -.3718907   .1282757    -2.90   0.004    -.6234767   -.1203047
 _Isector_26 |  -.4339288   .1025219    -4.23   0.000    -.6350042   -.2328534
 _Isector_27 |  -.2802469   .1064782    -2.63   0.009    -.4890818    -.071412
 _Isector_28 |  -.3942236    .110701    -3.56   0.000    -.6113405   -.1771066
 _Isector_29 |  -.2755672   .1170346    -2.35   0.019    -.5051062   -.0460282
 _Isector_30 |  -.5890754    .141273    -4.17   0.000    -.8661529   -.3119978
 _Isector_31 |   .8605323   .4215876     2.04   0.041     .0336761    1.687389
 _Isector_32 |          0  (omitted)
 _Isector_33 |  -.3334844   .1409607    -2.37   0.018    -.6099494   -.0570195
 _Isector_34 |  -.1864893    .179333    -1.04   0.299    -.5382136    .1652351
 _Isector_35 |  -.2243876   .1269987    -1.77   0.077    -.4734691     .024694
 _Isector_36 |   -.360202   .0885203    -4.07   0.000    -.5338161   -.1865879
 _Isector_37 |  -.5190337   .1933581    -2.68   0.007    -.8982654   -.1398021
 _Isector_38 |  -.4197313   .1634591    -2.57   0.010    -.7403224   -.0991403
 _Isector_39 |   .3114394   .1847229     1.69   0.092    -.0508561    .6737349
 _Isector_40 |  -.1868901    .157434    -1.19   0.235    -.4956641    .1218839
 _Isector_41 |   -.344288   .1054208    -3.27   0.001     -.551049   -.1375271
 _Isector_42 |  -.2501391   .0949097    -2.64   0.008    -.4362848   -.0639934
 _Isector_43 |          0  (omitted)
 _Isector_44 |  -.4648642   .2770005    -1.68   0.093    -1.008143    .0784145
 _Isector_45 |  -.2011465    .160111    -1.26   0.209    -.5151709    .1128779
 _Isector_46 |  -.3329908   .1370616    -2.43   0.015    -.6018085   -.0641731
   _Ieduc_32 |  -.1821632   .1391203    -1.31   0.191    -.4550187    .0906923
   _Ieduc_33 |  -.3929171   .1367153    -2.87   0.004    -.6610557   -.1247785
   _Ieduc_35 |  -.2265552   .0798864    -2.84   0.005    -.3832358   -.0698746
   _Ieduc_36 |  -.1068961   .3854188    -0.28   0.782    -.8628148    .6490225
   _Ieduc_37 |   -.118777   .3969243    -0.30   0.765    -.8972613    .6597072
   _Ieduc_38 |  -1.438297   .4146652    -3.47   0.001    -2.251577   -.6250181
   _Ieduc_53 |   .3249603   .1849392     1.76   0.079    -.0377593      .68768
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |  -.0813173   .0749686    -1.08   0.278    -.2283527     .065718
   _Ieduc_56 |   .8236559   .0968016     8.51   0.000     .6337997    1.013512
   _Ieduc_57 |   -.038944   .2490332    -0.16   0.876    -.5273707    .4494828
   _Ieduc_63 |  -.0492472   .2724787    -0.18   0.857    -.5836574    .4851631
   _Ieduc_64 |   .2365043   .1854393     1.28   0.202    -.1271963    .6002049
   _Ieduc_65 |   .1647165   .0732958     2.25   0.025     .0209621    .3084709
   _Ieduc_66 |          0  (omitted)
   _Ieduc_72 |  -.1970134   .1854251    -1.06   0.288    -.5606861    .1666592
   _Ieduc_73 |   .3576534   .1800437     1.99   0.047     .0045351    .7107717
   _Ieduc_74 |   .1588071   .0800165     1.98   0.047     .0018715    .3157427
   _Ieduc_75 |   .3641462    .072679     5.01   0.000     .2216015    .5066908
   _Ieduc_76 |   .5237256   .1080651     4.85   0.000     .3117784    .7356729
   _Ieduc_77 |   .4354403   .1263501     3.45   0.001      .187631    .6832497
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |   .3777537   .0855099     4.42   0.000     .2100438    .5454636
   _Ieduc_85 |   .5142399    .080848     6.36   0.000     .3556735    .6728063
   _Ieduc_86 |   .6038502   .1048709     5.76   0.000     .3981678    .8095325
   _Ieduc_87 |   .3136154   .2159018     1.45   0.147     -.109831    .7370619
   _Ieduc_99 |  -.1961996   .0936124    -2.10   0.036    -.3798007   -.0125984
   _Inuts2_2 |  -.0834952   .0275386    -3.03   0.002    -.1375064    -.029484
   _Inuts2_3 |  -.1245927   .0459244    -2.71   0.007    -.2146637   -.0345216
   _Inuts2_4 |   -.090376   .0274897    -3.29   0.001    -.1442913   -.0364607
   _Inuts2_5 |  -.1363357   .0447352    -3.05   0.002    -.2240745   -.0485969
   _Inuts2_6 |    .416824   .0814014     5.12   0.000     .2571721    .5764759
        pats |    .039539   .0124777     3.17   0.002     .0150665    .0640114
     lagcits |   .0009991   .0012067     0.83   0.408    -.0013677    .0033658
     lagcit2 |   .0011532   .0008107     1.42   0.155    -.0004367    .0027432
     lagcit3 |    .002416    .001468     1.65   0.100    -.0004631    .0052951
     lagcit4 |   .0027016   .0014534     1.86   0.063     -.000149    .0055521
     lagcit5 |   .0013698    .001261     1.09   0.278    -.0011034     .003843
     lagcit6 |   .0020261   .0020328     1.00   0.319    -.0019608    .0060131
       _cons |   7.802186   .4490001    17.38   0.000     6.921566    8.682806
------------------------------------------------------------------------------

.  /* TABLE 4 */
> xi: reg logwage $expl_18, cluster(id);
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Ivuosi_1996 omitted because of collinearity
note: _Ivuosi_1997 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_31 omitted because of collinearity
note: _Isector_32 omitted because of collinearity
note: _Isector_33 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_66 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity

Linear regression                                      Number of obs =    3206
                                                       F( 78,  1690) =       .
                                                       Prob > F      =       .
                                                       R-squared     =  0.2209
                                                       Root MSE      =  .58935

                                  (Std. Err. adjusted for 1691 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |    .129101   .0291049     4.44   0.000     .0720156    .1861865
        age2 |  -.0013107   .0003275    -4.00   0.000    -.0019531   -.0006683
      tenure |   .0067687   .0019463     3.48   0.001     .0029512    .0105861
      female |  -.2162952    .039169    -5.52   0.000      -.29312   -.1394704
      months |   .0134275   .0070307     1.91   0.056    -.0003623    .0272173
         emp |   .0010071   .0006213     1.62   0.105    -.0002116    .0022257
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |          0  (omitted)
_Ivuosi_1995 |          0  (omitted)
_Ivuosi_1996 |          0  (omitted)
_Ivuosi_1997 |          0  (omitted)
_Ivuosi_1998 |  -.0180881    .017086    -1.06   0.290       -.0516    .0154239
_Ivuosi_1999 |          0  (omitted)
  _Isector_2 |   .0547016   .0958206     0.57   0.568     -.133238    .2426412
  _Isector_3 |          0  (omitted)
  _Isector_4 |  -.2957344   .1284355    -2.30   0.021    -.5476438   -.0438249
  _Isector_5 |  -.3389604   .0939604    -3.61   0.000    -.5232513   -.1546694
  _Isector_6 |          0  (omitted)
  _Isector_7 |  -.1359639   .1476758    -0.92   0.357    -.4256106    .1536827
  _Isector_8 |  -.0960354   .4073236    -0.24   0.814    -.8949472    .7028764
  _Isector_9 |  -.4646143   .1816416    -2.56   0.011    -.8208805   -.1083481
 _Isector_10 |  -.1126615   .1242322    -0.91   0.365    -.3563267    .1310036
 _Isector_11 |  -.6757918   .1280019    -5.28   0.000    -.9268508   -.4247329
 _Isector_12 |  -.3853851   .1211666    -3.18   0.001    -.6230374   -.1477329
 _Isector_13 |  -.2733853   .1027556    -2.66   0.008    -.4749268   -.0718438
 _Isector_14 |  -.2248675   .1200474    -1.87   0.061    -.4603247    .0105898
 _Isector_15 |  -.0862143   .1436955    -0.60   0.549    -.3680541    .1956254
 _Isector_16 |  -.2755617   .1224431    -2.25   0.025    -.5157179   -.0354056
 _Isector_17 |  -.2643898   .1120401    -2.36   0.018    -.4841417   -.0446378
 _Isector_18 |  -.2731818   .1058654    -2.58   0.010    -.4808229   -.0655407
 _Isector_19 |  -.1328745     .13152    -1.01   0.312    -.3908337    .1250847
 _Isector_20 |   -.280017   .1150087    -2.43   0.015    -.5055915   -.0544426
 _Isector_21 |   .0148056    .121747     0.12   0.903    -.2239851    .2535963
 _Isector_22 |  -.2537243    .105487    -2.41   0.016    -.4606232   -.0468254
 _Isector_23 |  -.2623921   .1530668    -1.71   0.087    -.5626126    .0378284
 _Isector_24 |  -.2686833   .1461286    -1.84   0.066    -.5552954    .0179289
 _Isector_25 |  -.3181335    .148739    -2.14   0.033    -.6098654   -.0264015
 _Isector_26 |  -.4008896   .1211727    -3.31   0.001    -.6385539   -.1632254
 _Isector_27 |  -.2731679   .1242076    -2.20   0.028    -.5167848    -.029551
 _Isector_28 |  -.3577905    .132225    -2.71   0.007    -.6171326   -.0984485
 _Isector_29 |  -.1876267   .1276143    -1.47   0.142    -.4379254    .0626719
 _Isector_30 |  -.4910653    .194777    -2.52   0.012    -.8730948   -.1090357
 _Isector_31 |          0  (omitted)
 _Isector_32 |          0  (omitted)
 _Isector_33 |          0  (omitted)
 _Isector_34 |  -.1727062   .1909928    -0.90   0.366    -.5473135    .2019011
 _Isector_35 |  -.1598343   .1648071    -0.97   0.332    -.4830817    .1634131
 _Isector_36 |  -.3254593   .1107761    -2.94   0.003    -.5427321   -.1081864
 _Isector_37 |  -.4234861   .2166742    -1.95   0.051    -.8484641    .0014919
 _Isector_38 |  -.3401875   .1863405    -1.83   0.068      -.70567    .0252949
 _Isector_39 |    .354466   .1977341     1.79   0.073    -.0333634    .7422954
 _Isector_40 |  -.0772558   .1870215    -0.41   0.680    -.4440739    .2895623
 _Isector_41 |   -.301555   .1204241    -2.50   0.012     -.537751   -.0653589
 _Isector_42 |  -.1698683    .118196    -1.44   0.151    -.4016941    .0619576
 _Isector_43 |          0  (omitted)
 _Isector_44 |  -.3965265   .3422445    -1.16   0.247    -1.067794    .2747411
 _Isector_45 |  -.1406229   .1518889    -0.93   0.355    -.4385331    .1572872
 _Isector_46 |  -.2334322   .1812443    -1.29   0.198     -.588919    .1220547
   _Ieduc_32 |   -.254087   .1925296    -1.32   0.187    -.6317085    .1235344
   _Ieduc_33 |  -.5046285   .1466261    -3.44   0.001    -.7922162   -.2170407
   _Ieduc_35 |  -.1959988   .1001324    -1.96   0.050    -.3923954    .0003978
   _Ieduc_36 |   .1891834   .3881469     0.49   0.626    -.5721158    .9504825
   _Ieduc_37 |  -.1270865    .405415    -0.31   0.754    -.9222548    .6680818
   _Ieduc_38 |  -1.440766   .5437834    -2.65   0.008    -2.507326   -.3742065
   _Ieduc_53 |   .3459433   .1985257     1.74   0.082    -.0434388    .7353255
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |  -.0527017    .095835    -0.55   0.582    -.2406695    .1352661
   _Ieduc_56 |          0  (omitted)
   _Ieduc_57 |  -.0321459   .2837384    -0.11   0.910    -.5886614    .5243696
   _Ieduc_63 |  -.1350615   .3645471    -0.37   0.711    -.8500728    .5799497
   _Ieduc_64 |   .3209061   .1511098     2.12   0.034     .0245241    .6172882
   _Ieduc_65 |   .1938469   .0946064     2.05   0.041     .0082888     .379405
   _Ieduc_66 |          0  (omitted)
   _Ieduc_72 |  -.2244636   .2516923    -0.89   0.373    -.7181249    .2691977
   _Ieduc_73 |   .4600524   .2109517     2.18   0.029     .0462985    .8738064
   _Ieduc_74 |   .1935162   .1021459     1.89   0.058    -.0068295    .3938618
   _Ieduc_75 |   .4070295   .0939003     4.33   0.000     .2228565    .5912026
   _Ieduc_76 |   .5340247   .1169454     4.57   0.000     .3046517    .7633977
   _Ieduc_77 |   .4798714   .1519117     3.16   0.002     .1819165    .7778263
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |   .4273798    .102684     4.16   0.000     .2259787     .628781
   _Ieduc_85 |   .5538553   .1023436     5.41   0.000     .3531217     .754589
   _Ieduc_86 |   .6642946   .1331621     4.99   0.000     .4031146    .9254745
   _Ieduc_87 |   .2311626   .2887292     0.80   0.423    -.3351419    .7974671
   _Ieduc_99 |  -.1556404   .1133565    -1.37   0.170    -.3779743    .0666935
   _Inuts2_2 |  -.0947492   .0321834    -2.94   0.003    -.1578727   -.0316257
   _Inuts2_3 |  -.1470381   .0563994    -2.61   0.009    -.2576582   -.0364181
   _Inuts2_4 |  -.1162375   .0322888    -3.60   0.000    -.1795677   -.0529073
   _Inuts2_5 |  -.1641265   .0596631    -2.75   0.006    -.2811478   -.0471052
   _Inuts2_6 |   .3951098   .0781713     5.05   0.000     .2417871    .5484325
        pats |   .0325389   .0162857     2.00   0.046     .0005965    .0644812
     lagcits |   .0012725   .0017441     0.73   0.466    -.0021483    .0046932
     lagcit2 |   .0014447    .001392     1.04   0.299    -.0012856    .0041749
     lagcit3 |   .0030372   .0017044     1.78   0.075    -.0003058    .0063802
     lagcit4 |   .0026829   .0020125     1.33   0.183    -.0012644    .0066301
     lagcit5 |   .0037207   .0018819     1.98   0.048     .0000296    .0074119
     lagcit6 |   .0021979   .0024489     0.90   0.370    -.0026053    .0070011
     lagcit7 |  -.0021667   .0027224    -0.80   0.426    -.0075063     .003173
       _cons |   7.427329   .6219895    11.94   0.000     6.207378     8.64728
------------------------------------------------------------------------------

. xi: xtreg logwage $expl_11, fe robust  ;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: female omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_8 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =     15996
Group variable: id                              Number of groups   =      2156

R-sq:  within  = 0.2267                         Obs per group: min =         1
       between = 0.1754                                        avg =       7.4
       overall = 0.1650                                        max =         9

                                                F(63,2155)         =         .
corr(u_i, Xb)  = -0.4952                        Prob > F           =         .

                                  (Std. Err. adjusted for 2156 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .1286046   .0102335    12.57   0.000      .108536    .1486732
        age2 |  -.0010832   .0001122    -9.66   0.000    -.0013032   -.0008633
      tenure |   .0092722   .0015646     5.93   0.000     .0062039    .0123405
      female |          0  (omitted)
      months |   .0901272   .0079199    11.38   0.000     .0745957    .1056587
         emp |   .0022978   .0003227     7.12   0.000     .0016649    .0029306
_Ivuosi_1992 |  -.0444937   .0098657    -4.51   0.000     -.063841   -.0251463
_Ivuosi_1993 |  -.0884529   .0102751    -8.61   0.000    -.1086031   -.0683027
_Ivuosi_1994 |  -.0809831   .0110476    -7.33   0.000    -.1026481   -.0593182
_Ivuosi_1995 |  -.0720762   .0118502    -6.08   0.000    -.0953153   -.0488372
_Ivuosi_1996 |  -.0850446    .013569    -6.27   0.000    -.1116544   -.0584349
_Ivuosi_1997 |  -.0689768   .0128854    -5.35   0.000     -.094246   -.0437075
_Ivuosi_1998 |    -.01662   .0140024    -1.19   0.235    -.0440797    .0108397
_Ivuosi_1999 |          0  (omitted)
  _Isector_2 |  -.1976468   .1003966    -1.97   0.049    -.3945312   -.0007625
  _Isector_3 |  -3.018417   .0921882   -32.74   0.000    -3.199204    -2.83763
  _Isector_4 |  -.0709071   .1164145    -0.61   0.543    -.2992035    .1573892
  _Isector_5 |  -.1029347   .0243995    -4.22   0.000    -.1507837   -.0550857
  _Isector_6 |          0  (omitted)
  _Isector_7 |  -.1887231   .0713051    -2.65   0.008    -.3285571   -.0488891
  _Isector_8 |          0  (omitted)
  _Isector_9 |  -.2496724   .1189099    -2.10   0.036    -.4828625   -.0164823
 _Isector_10 |  -.2478904   .0952197    -2.60   0.009    -.4346224   -.0611584
 _Isector_11 |  -.6055113   .1069291    -5.66   0.000    -.8152062   -.3958163
 _Isector_12 |  -.1365508   .0674205    -2.03   0.043    -.2687668   -.0043348
 _Isector_13 |   -.157471   .0530391    -2.97   0.003    -.2614841    -.053458
 _Isector_14 |  -.0283834   .0838441    -0.34   0.735    -.1928071    .1360403
 _Isector_15 |  -.0094734   .1165635    -0.08   0.935     -.238062    .2191151
 _Isector_16 |  -.2589896     .07683    -3.37   0.001    -.4096583   -.1083209
 _Isector_17 |  -.1063354   .0645767    -1.65   0.100    -.2329746    .0203037
 _Isector_18 |  -.1355645    .056825    -2.39   0.017     -.247002    -.024127
 _Isector_19 |  -.1778336   .0675512    -2.63   0.009     -.310306   -.0453612
 _Isector_20 |  -.1298065   .0753568    -1.72   0.085    -.2775861    .0179731
 _Isector_21 |  -.2362339   .0705267    -3.35   0.001    -.3745413   -.0979265
 _Isector_22 |  -.1641894   .0641734    -2.56   0.011    -.2900376   -.0383412
 _Isector_23 |   -.197772   .0822496    -2.40   0.016    -.3590688   -.0364752
 _Isector_24 |  -.0681867   .1022143    -0.67   0.505    -.2686356    .1322623
 _Isector_25 |  -.1894994   .0771143    -2.46   0.014    -.3407255   -.0382733
 _Isector_26 |  -.1563269   .1047425    -1.49   0.136    -.3617338      .04908
 _Isector_27 |   .0890258   .1255843     0.71   0.478    -.1572533    .3353048
 _Isector_28 |  -.1343034   .0674597    -1.99   0.047    -.2665963   -.0020105
 _Isector_29 |  -.1550931   .0721648    -2.15   0.032     -.296613   -.0135732
 _Isector_30 |    -.13101   .0900233    -1.46   0.146    -.3075516    .0455315
 _Isector_31 |  -.0730655    .450344    -0.16   0.871    -.9562195    .8100885
 _Isector_32 |  -.1617117    .068109    -2.37   0.018    -.2952779   -.0281455
 _Isector_33 |  -.1783286   .0754114    -2.36   0.018    -.3262153   -.0304419
 _Isector_34 |  -.6032246    .468468    -1.29   0.198    -1.521921    .3154719
 _Isector_35 |  -.1874338   .1051145    -1.78   0.075    -.3935701    .0187026
 _Isector_36 |   2.148447   .0599148    35.86   0.000      2.03095    2.265944
 _Isector_37 |   .2359266   .0570454     4.14   0.000     .1240568    .3477964
 _Isector_38 |  -.1051317   .0965268    -1.09   0.276     -.294427    .0841637
 _Isector_39 |  -.0249263   .0641138    -0.39   0.697    -.1506577    .1008051
 _Isector_40 |  -.0858201   .1062104    -0.81   0.419    -.2941056    .1224654
 _Isector_41 |  -.1497658   .0749288    -2.00   0.046     -.296706   -.0028256
 _Isector_42 |  -.0917292   .0526183    -1.74   0.081    -.1949172    .0114588
 _Isector_43 |   -.382676   .0695806    -5.50   0.000    -.5191282   -.2462238
 _Isector_44 |     1.3461   .8059121     1.67   0.095     -.234346    2.926547
 _Isector_45 |   .1479312   .2396106     0.62   0.537    -.3219608    .6178233
 _Isector_46 |   -.184186   .1205402    -1.53   0.127    -.4205732    .0522011
   _Ieduc_32 |          0  (omitted)
   _Ieduc_33 |          0  (omitted)
   _Ieduc_35 |  -.2303687    .100716    -2.29   0.022    -.4278793    -.032858
   _Ieduc_36 |          0  (omitted)
   _Ieduc_37 |          0  (omitted)
   _Ieduc_38 |          0  (omitted)
   _Ieduc_53 |          0  (omitted)
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |    .450078   .1428836     3.15   0.002     .1698739    .7302821
   _Ieduc_56 |          0  (omitted)
   _Ieduc_57 |          0  (omitted)
   _Ieduc_63 |          0  (omitted)
   _Ieduc_64 |  -.0364191   .2260673    -0.16   0.872    -.4797519    .4069138
   _Ieduc_65 |   .4193743   .0756092     5.55   0.000     .2710998    .5676489
   _Ieduc_66 |    .431274   .1342919     3.21   0.001     .1679188    .6946291
   _Ieduc_72 |          0  (omitted)
   _Ieduc_73 |   .4432397   .0576524     7.69   0.000     .3301796    .5562997
   _Ieduc_74 |   .2452924   .1200684     2.04   0.041     .0098305    .4807544
   _Ieduc_75 |   .4241649   .0546655     7.76   0.000     .3169623    .5313675
   _Ieduc_76 |   .8614184   .1115929     7.72   0.000     .6425774    1.080259
   _Ieduc_77 |  -.1481403   .1104901    -1.34   0.180    -.3648186     .068538
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |   .2456518   .1151456     2.13   0.033     .0198436    .4714599
   _Ieduc_85 |   .4885264   .0901319     5.42   0.000     .3117719    .6652809
   _Ieduc_86 |   .8873482   .1154108     7.69   0.000       .66102    1.113676
   _Ieduc_87 |   .0190109   .0990031     0.19   0.848    -.1751407    .2131624
   _Ieduc_99 |   .2702988   .0941048     2.87   0.004     .0857531    .4548445
   _Inuts2_2 |  -.0733098   .0753806    -0.97   0.331    -.2211361    .0745164
   _Inuts2_3 |  -.0920807   .0656718    -1.40   0.161    -.2208675     .036706
   _Inuts2_4 |  -.0389564   .0984043    -0.40   0.692    -.2319338     .154021
   _Inuts2_5 |  -.1586756   .0856842    -1.85   0.064     -.326708    .0093567
   _Inuts2_6 |  -.0881263   .0120229    -7.33   0.000     -.111704   -.0645485
        pats |   .0161245   .0072482     2.22   0.026     .0019103    .0303387
       _cons |   5.852745   .2479538    23.60   0.000     5.366492    6.338999
-------------+----------------------------------------------------------------
     sigma_u |  .50491668
     sigma_e |   .3659747
         rho |  .65557999   (fraction of variance due to u_i)
------------------------------------------------------------------------------

. xi: xtreg logwage $expl_12, fe robust  ;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: female omitted because of collinearity
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_8 omitted because of collinearity
note: _Isector_37 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_76 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity
note: _Ieduc_86 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =     14161
Group variable: id                              Number of groups   =      2127

R-sq:  within  = 0.1725                         Obs per group: min =         1
       between = 0.0797                                        avg =       6.7
       overall = 0.0890                                        max =         8

                                                F(63,2126)         =         .
corr(u_i, Xb)  = -0.5901                        Prob > F           =         .

                                  (Std. Err. adjusted for 2127 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .1373998   .0119276    11.52   0.000     .1140087    .1607908
        age2 |  -.0011203   .0001309    -8.56   0.000     -.001377   -.0008635
      tenure |   .0071231   .0014742     4.83   0.000      .004232    .0100142
      female |          0  (omitted)
      months |   .0345835   .0088956     3.89   0.000     .0171386    .0520284
         emp |   .0025113   .0003561     7.05   0.000      .001813    .0032095
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |  -.0409006   .0095123    -4.30   0.000    -.0595549   -.0222463
_Ivuosi_1994 |  -.0335539   .0102729    -3.27   0.001    -.0536998    -.013408
_Ivuosi_1995 |  -.0340013   .0116792    -2.91   0.004    -.0569052   -.0110974
_Ivuosi_1996 |   -.050466   .0133314    -3.79   0.000    -.0766099    -.024322
_Ivuosi_1997 |  -.0442671   .0128118    -3.46   0.001    -.0693921   -.0191421
_Ivuosi_1998 |   .0023066   .0139993     0.16   0.869    -.0251472    .0297604
_Ivuosi_1999 |          0  (omitted)
  _Isector_2 |  -.0945792   .1008485    -0.94   0.348    -.2923513    .1031929
  _Isector_3 |          0  (omitted)
  _Isector_4 |  -.0339672   .1444622    -0.24   0.814    -.3172692    .2493349
  _Isector_5 |  -.0918035   .0244712    -3.75   0.000    -.1397934   -.0438135
  _Isector_6 |          0  (omitted)
  _Isector_7 |  -.2374008   .0718583    -3.30   0.001    -.3783207   -.0964809
  _Isector_8 |          0  (omitted)
  _Isector_9 |  -.1366159   .0949134    -1.44   0.150    -.3227488    .0495169
 _Isector_10 |  -.2033616   .0892783    -2.28   0.023    -.3784436   -.0282797
 _Isector_11 |  -.4744214   .0924368    -5.13   0.000    -.6556973   -.2931455
 _Isector_12 |  -.1425855   .0644061    -2.21   0.027     -.268891     -.01628
 _Isector_13 |  -.1443941    .051223    -2.82   0.005    -.2448465   -.0439416
 _Isector_14 |   .0457963   .0738866     0.62   0.535    -.0991013    .1906939
 _Isector_15 |   .0570625    .154653     0.37   0.712    -.2462245    .3603495
 _Isector_16 |   -.230345   .0685911    -3.36   0.001    -.3648577   -.0958322
 _Isector_17 |   -.087006    .063155    -1.38   0.168     -.210858    .0368459
 _Isector_18 |  -.1077986    .053047    -2.03   0.042     -.211828   -.0037691
 _Isector_19 |  -.1272146     .06206    -2.05   0.041    -.2489193   -.0055099
 _Isector_20 |  -.0683584   .0724058    -0.94   0.345     -.210352    .0736351
 _Isector_21 |  -.2524264   .0690161    -3.66   0.000    -.3877726   -.1170802
 _Isector_22 |  -.1366821   .0601954    -2.27   0.023    -.2547302   -.0186341
 _Isector_23 |  -.1626991   .0784912    -2.07   0.038    -.3166266   -.0087715
 _Isector_24 |   -.056169   .1061311    -0.53   0.597    -.2643008    .1519627
 _Isector_25 |  -.1250539     .06879    -1.82   0.069    -.2599567    .0098488
 _Isector_26 |  -.0545411   .0719679    -0.76   0.449    -.1956759    .0865938
 _Isector_27 |   .0766958   .1130987     0.68   0.498    -.1450998    .2984914
 _Isector_28 |  -.0113015   .0918301    -0.12   0.902    -.1913879    .1687848
 _Isector_29 |  -.1577118   .0723928    -2.18   0.029    -.2996799   -.0157437
 _Isector_30 |  -.2397892   .1268522    -1.89   0.059    -.4885567    .0089782
 _Isector_31 |  -.4761955   .4078558    -1.17   0.243    -1.276034    .3236425
 _Isector_32 |   .1016201   .0645867     1.57   0.116    -.0250397    .2282798
 _Isector_33 |   .1076497   .0833546     1.29   0.197    -.0558154    .2711149
 _Isector_34 |  -.6141443   .5623655    -1.09   0.275    -1.716988    .4886996
 _Isector_35 |  -.1132671   .0937066    -1.21   0.227    -.2970332     .070499
 _Isector_36 |   2.167813    .058013    37.37   0.000     2.054045    2.281581
 _Isector_37 |          0  (omitted)
 _Isector_38 |   -.011474   .0659157    -0.17   0.862      -.14074     .117792
 _Isector_39 |  -.0815839   .0922949    -0.88   0.377    -.2625816    .0994137
 _Isector_40 |  -.0249275   .0902762    -0.28   0.782    -.2019664    .1521115
 _Isector_41 |  -.1501735   .0700922    -2.14   0.032    -.2876299   -.0127171
 _Isector_42 |  -.0957539   .0488721    -1.96   0.050     -.191596    .0000883
 _Isector_43 |          0  (omitted)
 _Isector_44 |   1.541904   .8697403     1.77   0.076    -.1637269    3.247535
 _Isector_45 |    .313879   .3215083     0.98   0.329    -.3166247    .9443828
 _Isector_46 |  -.2138368     .17557    -1.22   0.223    -.5581437      .13047
   _Ieduc_32 |          0  (omitted)
   _Ieduc_33 |          0  (omitted)
   _Ieduc_35 |  -.2788357   .1052956    -2.65   0.008    -.4853288   -.0723425
   _Ieduc_36 |          0  (omitted)
   _Ieduc_37 |          0  (omitted)
   _Ieduc_38 |          0  (omitted)
   _Ieduc_53 |          0  (omitted)
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |   .3977002   .1747139     2.28   0.023     .0550722    .7403281
   _Ieduc_56 |          0  (omitted)
   _Ieduc_57 |          0  (omitted)
   _Ieduc_63 |          0  (omitted)
   _Ieduc_64 |  -.3061155   .2952835    -1.04   0.300    -.8851901    .2729591
   _Ieduc_65 |   .3275949   .1033546     3.17   0.002     .1249082    .5302816
   _Ieduc_66 |   .2742258   .1378321     1.99   0.047     .0039259    .5445257
   _Ieduc_72 |          0  (omitted)
   _Ieduc_73 |    1.08122   .0550703    19.63   0.000     .9732225    1.189217
   _Ieduc_74 |   .1211451   .1241083     0.98   0.329    -.1222413    .3645315
   _Ieduc_75 |   .2653586    .085755     3.09   0.002     .0971861    .4335312
   _Ieduc_76 |          0  (omitted)
   _Ieduc_77 |   -.151328   .1297214    -1.17   0.244    -.4057221     .103066
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |    .161429    .120183     1.34   0.179    -.0742595    .3971175
   _Ieduc_85 |    .376156   .1058082     3.56   0.000     .1686576    .5836543
   _Ieduc_86 |          0  (omitted)
   _Ieduc_87 |  -.0708687   .1241306    -0.57   0.568    -.3142989    .1725615
   _Ieduc_99 |   .2655623   .1534832     1.73   0.084    -.0354307    .5665552
   _Inuts2_2 |  -.1174729   .0961546    -1.22   0.222    -.3060397     .071094
   _Inuts2_3 |  -.0667278   .0692746    -0.96   0.336    -.2025809    .0691252
   _Inuts2_4 |  -.1350193   .1098421    -1.23   0.219    -.3504285    .0803899
   _Inuts2_5 |  -.2160636   .0984009    -2.20   0.028    -.4090356   -.0230916
   _Inuts2_6 |  -.0798306   .0124252    -6.42   0.000    -.1041974   -.0554637
        pats |   .0150014   .0078248     1.92   0.055    -.0003436    .0303464
     lagcits |   -.000155   .0006609    -0.23   0.815    -.0014511    .0011411
       _cons |   6.334703    .298896    21.19   0.000     5.748544    6.920862
-------------+----------------------------------------------------------------
     sigma_u |  .54500807
     sigma_e |  .35654513
         rho |  .70029008   (fraction of variance due to u_i)
------------------------------------------------------------------------------

. xi: xtreg logwage $expl_13, fe robust  ;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: female omitted because of collinearity
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_8 omitted because of collinearity
note: _Isector_11 omitted because of collinearity
note: _Isector_33 omitted because of collinearity
note: _Isector_36 omitted because of collinearity
note: _Isector_37 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_73 omitted because of collinearity
note: _Ieduc_76 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity
note: _Ieduc_86 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =     12357
Group variable: id                              Number of groups   =      2096

R-sq:  within  = 0.1567                         Obs per group: min =         1
       between = 0.0560                                        avg =       5.9
       overall = 0.0623                                        max =         7

                                                F(60,2095)         =         .
corr(u_i, Xb)  = -0.6474                        Prob > F           =         .

                                  (Std. Err. adjusted for 2096 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .1448503    .013633    10.63   0.000     .1181147    .1715859
        age2 |  -.0011485    .000145    -7.92   0.000    -.0014329   -.0008641
      tenure |   .0067894   .0015075     4.50   0.000      .003833    .0097458
      female |          0  (omitted)
      months |   .0232818   .0083532     2.79   0.005     .0069003    .0396633
         emp |   .0029209   .0004359     6.70   0.000      .002066    .0037758
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |   .0064277   .0090039     0.71   0.475    -.0112299    .0240853
_Ivuosi_1995 |  -.0037594   .0106938    -0.35   0.725    -.0247309    .0172121
_Ivuosi_1996 |  -.0274011   .0124527    -2.20   0.028     -.051822   -.0029801
_Ivuosi_1997 |   -.031061   .0124691    -2.49   0.013     -.055514   -.0066079
_Ivuosi_1998 |   .0114547    .014101     0.81   0.417    -.0161988    .0391082
_Ivuosi_1999 |          0  (omitted)
  _Isector_2 |  -.1413476   .1256456    -1.12   0.261    -.3877508    .1050556
  _Isector_3 |          0  (omitted)
  _Isector_4 |  -.0123951   .1499525    -0.08   0.934    -.3064664    .2816762
  _Isector_5 |  -.1343108    .027287    -4.92   0.000    -.1878233   -.0807983
  _Isector_6 |          0  (omitted)
  _Isector_7 |  -.2599498   .0733552    -3.54   0.000    -.4038065    -.116093
  _Isector_8 |          0  (omitted)
  _Isector_9 |  -.2080541   .1018093    -2.04   0.041    -.4077121   -.0083961
 _Isector_10 |  -.2622775    .090972    -2.88   0.004    -.4406825   -.0838726
 _Isector_11 |          0  (omitted)
 _Isector_12 |   -.255659   .0718654    -3.56   0.000    -.3965941    -.114724
 _Isector_13 |  -.1866277   .0547668    -3.41   0.001    -.2940307   -.0792246
 _Isector_14 |   .0498088    .094138     0.53   0.597    -.1348049    .2344225
 _Isector_15 |   .0499406   .1606924     0.31   0.756    -.2651929     .365074
 _Isector_16 |   -.281599   .0755803    -3.73   0.000    -.4298194   -.1333787
 _Isector_17 |  -.1828543    .066666    -2.74   0.006    -.3135928   -.0521158
 _Isector_18 |  -.1638471   .0548647    -2.99   0.003    -.2714421   -.0562522
 _Isector_19 |  -.2048839   .0719529    -2.85   0.004    -.3459906   -.0637773
 _Isector_20 |  -.1482966   .0698105    -2.12   0.034    -.2852018   -.0113914
 _Isector_21 |  -.3552979   .0909312    -3.91   0.000    -.5336229   -.1769729
 _Isector_22 |  -.1839045   .0638934    -2.88   0.004    -.3092056   -.0586034
 _Isector_23 |  -.2372386   .0758346    -3.13   0.002    -.3859576   -.0885195
 _Isector_24 |  -.1239131   .1229926    -1.01   0.314    -.3651135    .1172873
 _Isector_25 |  -.2450089   .0889525    -2.75   0.006    -.4194534   -.0705643
 _Isector_26 |  -.1925868   .0736182    -2.62   0.009    -.3369592   -.0482143
 _Isector_27 |  -.0043181    .127287    -0.03   0.973    -.2539402     .245304
 _Isector_28 |   .0002127   .0784773     0.00   0.998    -.1536889    .1541143
 _Isector_29 |  -.2127447   .0721615    -2.95   0.003    -.3542604    -.071229
 _Isector_30 |  -.1574446    .120969    -1.30   0.193    -.3946764    .0797873
 _Isector_31 |  -.2085323   .4602368    -0.45   0.651    -1.111101    .6940368
 _Isector_32 |   .0495474   .0477593     1.04   0.300    -.0441132    .1432079
 _Isector_33 |          0  (omitted)
 _Isector_34 |  -.8592909   .6456398    -1.33   0.183    -2.125453    .4068715
 _Isector_35 |  -.1958905   .1252151    -1.56   0.118    -.4414495    .0496686
 _Isector_36 |          0  (omitted)
 _Isector_37 |          0  (omitted)
 _Isector_38 |   .0380124   .0580376     0.65   0.513    -.0758049    .1518298
 _Isector_39 |   -.118598   .1159622    -1.02   0.307    -.3460111    .1088151
 _Isector_40 |  -.1219873   .0907784    -1.34   0.179    -.3000125    .0560379
 _Isector_41 |   -.175368   .0713975    -2.46   0.014    -.3153853   -.0353507
 _Isector_42 |  -.1325358   .0537985    -2.46   0.014    -.2380399   -.0270317
 _Isector_43 |          0  (omitted)
 _Isector_44 |    1.59273   .8518782     1.87   0.062     -.077886    3.263346
 _Isector_45 |   .2185624   .2829057     0.77   0.440    -.3362432     .773368
 _Isector_46 |  -.2721355   .2246761    -1.21   0.226    -.7127471     .168476
   _Ieduc_32 |          0  (omitted)
   _Ieduc_33 |          0  (omitted)
   _Ieduc_35 |  -.2400203    .156009    -1.54   0.124    -.5459691    .0659286
   _Ieduc_36 |          0  (omitted)
   _Ieduc_37 |          0  (omitted)
   _Ieduc_38 |          0  (omitted)
   _Ieduc_53 |          0  (omitted)
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |   .4269467   .2178411     1.96   0.050    -.0002609    .8541543
   _Ieduc_56 |          0  (omitted)
   _Ieduc_57 |          0  (omitted)
   _Ieduc_63 |          0  (omitted)
   _Ieduc_64 |   .3381637    .152409     2.22   0.027     .0392749    .6370525
   _Ieduc_65 |   .3223584   .1520732     2.12   0.034      .024128    .6205887
   _Ieduc_66 |   .3950294   .1732752     2.28   0.023     .0552199    .7348389
   _Ieduc_72 |          0  (omitted)
   _Ieduc_73 |          0  (omitted)
   _Ieduc_74 |   .2129948   .1680894     1.27   0.205    -.1166448    .5426345
   _Ieduc_75 |   .2628241   .1305751     2.01   0.044     .0067537    .5188945
   _Ieduc_76 |          0  (omitted)
   _Ieduc_77 |  -.2920451   .0242895   -12.02   0.000     -.339679   -.2444111
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |   .1241256   .1544445     0.80   0.422     -.178755    .4270063
   _Ieduc_85 |   .3905169   .1447461     2.70   0.007     .1066556    .6743781
   _Ieduc_86 |          0  (omitted)
   _Ieduc_87 |  -.4524128   .0250255   -18.08   0.000    -.5014901   -.4033354
   _Ieduc_99 |   .2879019   .1937363     1.49   0.137    -.0920338    .6678376
   _Inuts2_2 |  -.1974761   .0848819    -2.33   0.020    -.3639377   -.0310145
   _Inuts2_3 |  -.0506807   .0660307    -0.77   0.443    -.1801732    .0788119
   _Inuts2_4 |  -.0869793   .1223426    -0.71   0.477     -.326905    .1529464
   _Inuts2_5 |  -.2780899    .130907    -2.12   0.034    -.5348111   -.0213687
   _Inuts2_6 |  -.0565152   .0123092    -4.59   0.000    -.0806547   -.0323758
        pats |   .0153824   .0080629     1.91   0.057    -.0004298    .0311945
     lagcits |  -.0001155    .000716    -0.16   0.872    -.0015195    .0012886
     lagcit2 |  -.0000261   .0005955    -0.04   0.965    -.0011939    .0011418
       _cons |   6.270162   .3486972    17.98   0.000     5.586333    6.953991
-------------+----------------------------------------------------------------
     sigma_u |  .58758368
     sigma_e |  .35180745
         rho |   .7361143   (fraction of variance due to u_i)
------------------------------------------------------------------------------

. xi: xtreg logwage $expl_14, fe robust  ;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: female omitted because of collinearity
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_7 omitted because of collinearity
note: _Isector_8 omitted because of collinearity
note: _Isector_11 omitted because of collinearity
note: _Isector_28 omitted because of collinearity
note: _Isector_33 omitted because of collinearity
note: _Isector_34 omitted because of collinearity
note: _Isector_36 omitted because of collinearity
note: _Isector_37 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_73 omitted because of collinearity
note: _Ieduc_76 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity
note: _Ieduc_86 omitted because of collinearity
note: _Ieduc_87 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =     10572
Group variable: id                              Number of groups   =      2054

R-sq:  within  = 0.1394                         Obs per group: min =         1
       between = 0.0783                                        avg =       5.1
       overall = 0.0752                                        max =         6

                                                F(56,2053)         =         .
corr(u_i, Xb)  = -0.6148                        Prob > F           =         .

                                  (Std. Err. adjusted for 2054 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .1381239   .0159856     8.64   0.000     .1067743    .1694735
        age2 |  -.0011076   .0001716    -6.45   0.000    -.0014441    -.000771
      tenure |   .0061951   .0015803     3.92   0.000     .0030959    .0092942
      female |          0  (omitted)
      months |   .0221307   .0075749     2.92   0.004     .0072753    .0369861
         emp |   .0031404   .0004835     6.50   0.000     .0021923    .0040885
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |          0  (omitted)
_Ivuosi_1995 |  -.0073397   .0091213    -0.80   0.421    -.0252276    .0105483
_Ivuosi_1996 |  -.0350748   .0116191    -3.02   0.003    -.0578612   -.0122884
_Ivuosi_1997 |  -.0323427   .0120975    -2.67   0.008    -.0560673    -.008618
_Ivuosi_1998 |   .0069188    .013825     0.50   0.617    -.0201936    .0340312
_Ivuosi_1999 |          0  (omitted)
  _Isector_2 |  -.0972864   .1634655    -0.60   0.552    -.4178618    .2232891
  _Isector_3 |          0  (omitted)
  _Isector_4 |   .2396349   .2392023     1.00   0.317    -.2294695    .7087394
  _Isector_5 |  -.1560254   .0312961    -4.99   0.000    -.2174007   -.0946501
  _Isector_6 |          0  (omitted)
  _Isector_7 |          0  (omitted)
  _Isector_8 |          0  (omitted)
  _Isector_9 |  -.1905671    .133946    -1.42   0.155    -.4532514    .0721172
 _Isector_10 |  -.2517792   .1196225    -2.10   0.035    -.4863733   -.0171852
 _Isector_11 |          0  (omitted)
 _Isector_12 |     -.2247   .0943497    -2.38   0.017    -.4097311   -.0396689
 _Isector_13 |  -.1938792   .0645058    -3.01   0.003    -.3203828   -.0673755
 _Isector_14 |   .1102907   .1340936     0.82   0.411     -.152683    .3732644
 _Isector_15 |   .1924604    .238975     0.81   0.421    -.2761983    .6611191
 _Isector_16 |  -.3093091   .0870559    -3.55   0.000    -.4800363    -.138582
 _Isector_17 |   -.177062   .0713818    -2.48   0.013    -.3170502   -.0370737
 _Isector_18 |  -.1610204   .0604207    -2.66   0.008    -.2795127   -.0425282
 _Isector_19 |  -.2008259   .0796778    -2.52   0.012    -.3570836   -.0445682
 _Isector_20 |  -.1398823    .079341    -1.76   0.078    -.2954796     .015715
 _Isector_21 |   -.412963   .1077177    -3.83   0.000    -.6242103   -.2017156
 _Isector_22 |  -.1886975   .0724645    -2.60   0.009    -.3308091   -.0465858
 _Isector_23 |  -.2012433   .0810571    -2.48   0.013     -.360206   -.0422806
 _Isector_24 |  -.1354483    .135661    -1.00   0.318    -.4014958    .1305993
 _Isector_25 |  -.2303955   .1147713    -2.01   0.045    -.4554757   -.0053152
 _Isector_26 |  -.2134352   .0906068    -2.36   0.019    -.3911261   -.0357442
 _Isector_27 |   .0694363   .1336827     0.52   0.604    -.1927315    .3316042
 _Isector_28 |          0  (omitted)
 _Isector_29 |  -.2234194   .0675058    -3.31   0.001    -.3558064   -.0910325
 _Isector_30 |   -.250023   .1423927    -1.76   0.079    -.5292721    .0292261
 _Isector_31 |  -.1856465   .3481698    -0.53   0.594    -.8684493    .4971563
 _Isector_32 |   .0188521   .0554303     0.34   0.734    -.0898535    .1275576
 _Isector_33 |          0  (omitted)
 _Isector_34 |          0  (omitted)
 _Isector_35 |  -.2666342    .112263    -2.38   0.018    -.4867954    -.046473
 _Isector_36 |          0  (omitted)
 _Isector_37 |          0  (omitted)
 _Isector_38 |   .0682456    .071339     0.96   0.339    -.0716588      .20815
 _Isector_39 |  -.0376313   .0667403    -0.56   0.573    -.1685171    .0932545
 _Isector_40 |  -.1255028   .1042952    -1.20   0.229    -.3300382    .0790326
 _Isector_41 |  -.1985954   .0817064    -2.43   0.015    -.3588313   -.0383594
 _Isector_42 |  -.1293876   .0619393    -2.09   0.037     -.250858   -.0079172
 _Isector_43 |          0  (omitted)
 _Isector_44 |   1.683322   .8451212     1.99   0.047     .0259376    3.340706
 _Isector_45 |   .1779582   .2587731     0.69   0.492    -.3295269    .6854434
 _Isector_46 |  -.1786507    .170958    -1.04   0.296    -.5139198    .1566184
   _Ieduc_32 |          0  (omitted)
   _Ieduc_33 |          0  (omitted)
   _Ieduc_35 |  -.1879736   .1303963    -1.44   0.150    -.4436965    .0677493
   _Ieduc_36 |          0  (omitted)
   _Ieduc_37 |          0  (omitted)
   _Ieduc_38 |          0  (omitted)
   _Ieduc_53 |          0  (omitted)
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |   .4753421   .2572215     1.85   0.065    -.0291001    .9797843
   _Ieduc_56 |          0  (omitted)
   _Ieduc_57 |          0  (omitted)
   _Ieduc_63 |          0  (omitted)
   _Ieduc_64 |    .751614   .1671081     4.50   0.000      .423895    1.079333
   _Ieduc_65 |   .3133354    .181919     1.72   0.085    -.0434296    .6701005
   _Ieduc_66 |    .546546   .2191056     2.49   0.013     .1168536    .9762384
   _Ieduc_72 |          0  (omitted)
   _Ieduc_73 |          0  (omitted)
   _Ieduc_74 |   .3433821   .2128178     1.61   0.107    -.0739791    .7607434
   _Ieduc_75 |   .4948564    .143119     3.46   0.001     .2141828    .7755299
   _Ieduc_76 |          0  (omitted)
   _Ieduc_77 |   .1556033   .0104841    14.84   0.000     .1350426     .176164
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |   .2640541    .185071     1.43   0.154    -.0988924    .6270006
   _Ieduc_85 |   .7419534   .1671776     4.44   0.000      .414098    1.069809
   _Ieduc_86 |          0  (omitted)
   _Ieduc_87 |          0  (omitted)
   _Ieduc_99 |   .3162013   .2259171     1.40   0.162    -.1268493    .7592518
   _Inuts2_2 |  -.2053921   .1115099    -1.84   0.066    -.4240763    .0132921
   _Inuts2_3 |  -.0570267   .0888872    -0.64   0.521    -.2313452    .1172919
   _Inuts2_4 |  -.0389658     .17114    -0.23   0.820    -.3745919    .2966603
   _Inuts2_5 |  -.3896946    .171768    -2.27   0.023    -.7265521    -.052837
   _Inuts2_6 |  -.0617994   .0128093    -4.82   0.000    -.0869199   -.0366789
        pats |   .0173647   .0081779     2.12   0.034     .0013268    .0334025
     lagcits |   .0000688   .0008389     0.08   0.935    -.0015763     .001714
     lagcit2 |   .0001703   .0006329     0.27   0.788     -.001071    .0014116
     lagcit3 |   .0009057   .0010817     0.84   0.403    -.0012156    .0030269
       _cons |   6.373268   .3923007    16.25   0.000      5.60392    7.142617
-------------+----------------------------------------------------------------
     sigma_u |  .58812863
     sigma_e |  .33891033
         rho |  .75071331   (fraction of variance due to u_i)
------------------------------------------------------------------------------

. xi: xtreg logwage $expl_15, fe robust  ;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: female omitted because of collinearity
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_7 omitted because of collinearity
note: _Isector_8 omitted because of collinearity
note: _Isector_11 omitted because of collinearity
note: _Isector_28 omitted because of collinearity
note: _Isector_32 omitted because of collinearity
note: _Isector_33 omitted because of collinearity
note: _Isector_34 omitted because of collinearity
note: _Isector_36 omitted because of collinearity
note: _Isector_37 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Isector_45 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_64 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_73 omitted because of collinearity
note: _Ieduc_76 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity
note: _Ieduc_86 omitted because of collinearity
note: _Ieduc_87 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =      8612
Group variable: id                              Number of groups   =      1968

R-sq:  within  = 0.1143                         Obs per group: min =         1
       between = 0.0687                                        avg =       4.4
       overall = 0.0649                                        max =         5

                                                F(50,1967)         =         .
corr(u_i, Xb)  = -0.5893                        Prob > F           =         .

                                  (Std. Err. adjusted for 1968 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .1509408   .0225496     6.69   0.000     .1067172    .1951644
        age2 |  -.0012626   .0002377    -5.31   0.000    -.0017288   -.0007964
      tenure |    .005905   .0015852     3.73   0.000     .0027962    .0090137
      female |          0  (omitted)
      months |   .0185587   .0069734     2.66   0.008     .0048828    .0322347
         emp |    .004113    .000746     5.51   0.000     .0026501     .005576
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |          0  (omitted)
_Ivuosi_1995 |          0  (omitted)
_Ivuosi_1996 |   -.027608   .0085979    -3.21   0.001    -.0444699   -.0107461
_Ivuosi_1997 |  -.0318807   .0104873    -3.04   0.002    -.0524481   -.0113133
_Ivuosi_1998 |   .0088698   .0132843     0.67   0.504     -.017183    .0349226
_Ivuosi_1999 |          0  (omitted)
  _Isector_2 |  -.0664246   .0081446    -8.16   0.000    -.0823976   -.0504516
  _Isector_3 |          0  (omitted)
  _Isector_4 |  -.1487203   .0944185    -1.58   0.115    -.3338911    .0364504
  _Isector_5 |  -.2135816    .040428    -5.28   0.000    -.2928677   -.1342955
  _Isector_6 |          0  (omitted)
  _Isector_7 |          0  (omitted)
  _Isector_8 |          0  (omitted)
  _Isector_9 |  -.2613838   .2346513    -1.11   0.265    -.7215749    .1988074
 _Isector_10 |  -.3109419   .1866296    -1.67   0.096    -.6769544    .0550707
 _Isector_11 |          0  (omitted)
 _Isector_12 |  -.3227375   .1020024    -3.16   0.002    -.5227817   -.1226933
 _Isector_13 |  -.2645319   .0703157    -3.76   0.000     -.402433   -.1266307
 _Isector_14 |  -.0506108   .1176376    -0.43   0.667    -.2813183    .1800967
 _Isector_15 |  -.2030099    .093924    -2.16   0.031    -.3872108   -.0188089
 _Isector_16 |  -.3501653    .104544    -3.35   0.001     -.555194   -.1451366
 _Isector_17 |  -.2254564   .0906764    -2.49   0.013    -.4032883   -.0476245
 _Isector_18 |  -.2581381   .0668904    -3.86   0.000    -.3893216   -.1269546
 _Isector_19 |  -.2498757   .0897602    -2.78   0.005    -.4259108   -.0738407
 _Isector_20 |  -.1814387   .0796462    -2.28   0.023    -.3376385    -.025239
 _Isector_21 |  -.5072503   .1340727    -3.78   0.000    -.7701898   -.2443107
 _Isector_22 |  -.2474614   .0791788    -3.13   0.002    -.4027445   -.0921784
 _Isector_23 |  -.2156119   .1474527    -1.46   0.144    -.5047919    .0735681
 _Isector_24 |  -.2900894   .1398637    -2.07   0.038    -.5643861   -.0157928
 _Isector_25 |   -.244214   .1099726    -2.22   0.026     -.459889    -.028539
 _Isector_26 |  -.4069488   .1441881    -2.82   0.005    -.6897263   -.1241712
 _Isector_27 |  -.0516247   .1952372    -0.26   0.791    -.4345182    .3312688
 _Isector_28 |          0  (omitted)
 _Isector_29 |   -.285778   .0743254    -3.84   0.000    -.4315427   -.1400132
 _Isector_30 |  -.2572475   .1129981    -2.28   0.023     -.478856    -.035639
 _Isector_31 |   .2283375   .1107908     2.06   0.039     .0110579    .4456172
 _Isector_32 |          0  (omitted)
 _Isector_33 |          0  (omitted)
 _Isector_34 |          0  (omitted)
 _Isector_35 |  -.2391677   .1548205    -1.54   0.123    -.5427972    .0644618
 _Isector_36 |          0  (omitted)
 _Isector_37 |          0  (omitted)
 _Isector_38 |  -.0089001   .0869123    -0.10   0.918      -.17935    .1615498
 _Isector_39 |  -.1257483   .0731099    -1.72   0.086    -.2691293    .0176328
 _Isector_40 |  -.1668137   .1109373    -1.50   0.133    -.3843807    .0507532
 _Isector_41 |  -.2509679    .085271    -2.94   0.003    -.4181988    -.083737
 _Isector_42 |  -.2206454   .0652335    -3.38   0.001    -.3485793   -.0927114
 _Isector_43 |          0  (omitted)
 _Isector_44 |   1.627942   .8037409     2.03   0.043     .0516691    3.204215
 _Isector_45 |          0  (omitted)
 _Isector_46 |  -.1296279    .115009    -1.13   0.260    -.3551801    .0959243
   _Ieduc_32 |          0  (omitted)
   _Ieduc_33 |          0  (omitted)
   _Ieduc_35 |  -.1108555   .1158282    -0.96   0.339    -.3380143    .1163033
   _Ieduc_36 |          0  (omitted)
   _Ieduc_37 |          0  (omitted)
   _Ieduc_38 |          0  (omitted)
   _Ieduc_53 |          0  (omitted)
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |   .5269598   .3517689     1.50   0.134    -.1629191    1.216839
   _Ieduc_56 |          0  (omitted)
   _Ieduc_57 |          0  (omitted)
   _Ieduc_63 |          0  (omitted)
   _Ieduc_64 |          0  (omitted)
   _Ieduc_65 |   .3064588   .2937901     1.04   0.297    -.2697137    .8826313
   _Ieduc_66 |   .7135249   .2782545     2.56   0.010     .1678203     1.25923
   _Ieduc_72 |          0  (omitted)
   _Ieduc_73 |          0  (omitted)
   _Ieduc_74 |   .5670166   .2734913     2.07   0.038     .0306534     1.10338
   _Ieduc_75 |   .4839527   .2614328     1.85   0.064    -.0287617    .9966671
   _Ieduc_76 |          0  (omitted)
   _Ieduc_77 |   .1432365   .0109643    13.06   0.000     .1217337    .1647393
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |   .4763381   .2777324     1.72   0.086    -.0683425    1.021019
   _Ieduc_85 |   .6873556   .2890724     2.38   0.018     .1204352    1.254276
   _Ieduc_86 |          0  (omitted)
   _Ieduc_87 |          0  (omitted)
   _Ieduc_99 |   .1134241   .1624664     0.70   0.485    -.2052002    .4320484
   _Inuts2_2 |  -.2467292   .1455786    -1.69   0.090    -.5322338    .0387753
   _Inuts2_3 |   -.108945   .0815541    -1.34   0.182    -.2688865    .0509965
   _Inuts2_4 |   -.112304   .1129881    -0.99   0.320     -.333893     .109285
   _Inuts2_5 |   -.388443   .1779918    -2.18   0.029    -.7375152   -.0393707
   _Inuts2_6 |  -.0596864   .0134701    -4.43   0.000    -.0861036   -.0332692
        pats |   .0187018   .0090454     2.07   0.039     .0009622    .0364414
     lagcits |   .0001346   .0009137     0.15   0.883    -.0016574    .0019266
     lagcit2 |   .0009588   .0009242     1.04   0.300    -.0008538    .0027714
     lagcit3 |   .0016236   .0011693     1.39   0.165    -.0006697    .0039168
     lagcit4 |   .0018729   .0010181     1.84   0.066    -.0001238    .0038695
       _cons |   6.222714   .5589637    11.13   0.000     5.126491    7.318937
-------------+----------------------------------------------------------------
     sigma_u |  .59202271
     sigma_e |  .34742946
         rho |  .74382913   (fraction of variance due to u_i)
------------------------------------------------------------------------------

. xi: xtreg logwage $expl_16, fe robust  ;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: female omitted because of collinearity
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Ivuosi_1996 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_4 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_7 omitted because of collinearity
note: _Isector_8 omitted because of collinearity
note: _Isector_11 omitted because of collinearity
note: _Isector_28 omitted because of collinearity
note: _Isector_32 omitted because of collinearity
note: _Isector_33 omitted because of collinearity
note: _Isector_34 omitted because of collinearity
note: _Isector_36 omitted because of collinearity
note: _Isector_37 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Isector_45 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_64 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_73 omitted because of collinearity
note: _Ieduc_76 omitted because of collinearity
note: _Ieduc_77 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity
note: _Ieduc_86 omitted because of collinearity
note: _Ieduc_87 omitted because of collinearity
note: _Inuts2_6 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =      6746
Group variable: id                              Number of groups   =      1887

R-sq:  within  = 0.0981                         Obs per group: min =         1
       between = 0.0430                                        avg =       3.6
       overall = 0.0435                                        max =         4

                                                F(48,1886)         =         .
corr(u_i, Xb)  = -0.6206                        Prob > F           =         .

                                  (Std. Err. adjusted for 1887 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .1791189   .0317251     5.65   0.000     .1168988    .2413389
        age2 |  -.0014893   .0003335    -4.47   0.000    -.0021434   -.0008351
      tenure |   .0055594    .001789     3.11   0.002     .0020507    .0090681
      female |          0  (omitted)
      months |   .0147627   .0072765     2.03   0.043     .0004919    .0290334
         emp |   .0040012   .0007944     5.04   0.000     .0024432    .0055592
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |          0  (omitted)
_Ivuosi_1995 |          0  (omitted)
_Ivuosi_1996 |          0  (omitted)
_Ivuosi_1997 |   -.015514   .0081991    -1.89   0.059    -.0315943    .0005662
_Ivuosi_1998 |   .0139504   .0119842     1.16   0.245    -.0095532     .037454
_Ivuosi_1999 |          0  (omitted)
  _Isector_2 |  -.0781366   .0090292    -8.65   0.000     -.095845   -.0604283
  _Isector_3 |          0  (omitted)
  _Isector_4 |          0  (omitted)
  _Isector_5 |  -.2159377   .0415862    -5.19   0.000    -.2974974   -.1343779
  _Isector_6 |          0  (omitted)
  _Isector_7 |          0  (omitted)
  _Isector_8 |          0  (omitted)
  _Isector_9 |  -.0902561   .3669655    -0.25   0.806    -.8099572     .629445
 _Isector_10 |  -.2432434   .2845519    -0.85   0.393    -.8013131    .3148263
 _Isector_11 |          0  (omitted)
 _Isector_12 |   -.262474   .1072174    -2.45   0.014    -.4727511   -.0521969
 _Isector_13 |  -.1887329   .0880344    -2.14   0.032    -.3613881   -.0160778
 _Isector_14 |  -.1890014    .085497    -2.21   0.027      -.35668   -.0213228
 _Isector_15 |  -.0428362   .0144186    -2.97   0.003    -.0711143   -.0145581
 _Isector_16 |  -.3115372   .1160825    -2.68   0.007    -.5392009   -.0838735
 _Isector_17 |  -.1816238   .1087536    -1.67   0.095    -.3949138    .0316662
 _Isector_18 |  -.1602865   .0788285    -2.03   0.042    -.3148867   -.0056864
 _Isector_19 |  -.1653781   .1193064    -1.39   0.166    -.3993645    .0686082
 _Isector_20 |  -.1059204   .0915523    -1.16   0.247    -.2854748    .0736341
 _Isector_21 |  -.4132031   .1689342    -2.45   0.015    -.7445207   -.0818855
 _Isector_22 |   -.185722   .0898985    -2.07   0.039     -.362033   -.0094111
 _Isector_23 |   -.116163   .2004908    -0.58   0.562    -.5093701    .2770441
 _Isector_24 |   -.273959   .1048674    -2.61   0.009    -.4796273   -.0682907
 _Isector_25 |  -.1812829   .0839281    -2.16   0.031    -.3458846   -.0166811
 _Isector_26 |  -.3876235   .1917427    -2.02   0.043    -.7636736   -.0115734
 _Isector_27 |   .1833546   .3640703     0.50   0.615    -.5306683    .8973775
 _Isector_28 |          0  (omitted)
 _Isector_29 |   -.184535   .0804229    -2.29   0.022    -.3422623   -.0268077
 _Isector_30 |  -.2524035   .1674533    -1.51   0.132    -.5808166    .0760097
 _Isector_31 |   .2040596   .1655925     1.23   0.218    -.1207041    .5288232
 _Isector_32 |          0  (omitted)
 _Isector_33 |          0  (omitted)
 _Isector_34 |          0  (omitted)
 _Isector_35 |  -.2191955   .1428592    -1.53   0.125    -.4993742    .0609832
 _Isector_36 |          0  (omitted)
 _Isector_37 |          0  (omitted)
 _Isector_38 |   .0729352   .1054131     0.69   0.489    -.1338032    .2796737
 _Isector_39 |  -.0748937   .0804199    -0.93   0.352    -.2326151    .0828277
 _Isector_40 |  -.1564692   .1488212    -1.05   0.293    -.4483407    .1354023
 _Isector_41 |  -.1947502   .0931262    -2.09   0.037    -.3773914   -.0121091
 _Isector_42 |  -.1625213   .0776696    -2.09   0.037    -.3148487   -.0101939
 _Isector_43 |          0  (omitted)
 _Isector_44 |   1.834496   .8425814     2.18   0.030     .1820063    3.486986
 _Isector_45 |          0  (omitted)
 _Isector_46 |  -.1478761   .0921007    -1.61   0.109    -.3285061    .0327538
   _Ieduc_32 |          0  (omitted)
   _Ieduc_33 |          0  (omitted)
   _Ieduc_35 |   .1416569     .11456     1.24   0.216    -.0830208    .3663347
   _Ieduc_36 |          0  (omitted)
   _Ieduc_37 |          0  (omitted)
   _Ieduc_38 |          0  (omitted)
   _Ieduc_53 |          0  (omitted)
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |   .4648432   .4055045     1.15   0.252    -.3304414    1.260128
   _Ieduc_56 |          0  (omitted)
   _Ieduc_57 |          0  (omitted)
   _Ieduc_63 |          0  (omitted)
   _Ieduc_64 |          0  (omitted)
   _Ieduc_65 |   .2051054    .413201     0.50   0.620    -.6052738    1.015485
   _Ieduc_66 |   .3145284   .4140711     0.76   0.448    -.4975573    1.126614
   _Ieduc_72 |          0  (omitted)
   _Ieduc_73 |          0  (omitted)
   _Ieduc_74 |   .2940616   .4130277     0.71   0.477    -.5159776    1.104101
   _Ieduc_75 |   .5766559   .3422461     1.68   0.092     -.094565    1.247877
   _Ieduc_76 |          0  (omitted)
   _Ieduc_77 |          0  (omitted)
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |   .2775355   .4218134     0.66   0.511    -.5497343    1.104805
   _Ieduc_85 |   .5881146   .3554217     1.65   0.098    -.1089464    1.285176
   _Ieduc_86 |          0  (omitted)
   _Ieduc_87 |          0  (omitted)
   _Ieduc_99 |   .3897109   .1707603     2.28   0.023      .054812    .7246098
   _Inuts2_2 |  -.3387726   .1694244    -2.00   0.046    -.6710516   -.0064936
   _Inuts2_3 |  -.0670633   .0880377    -0.76   0.446    -.2397247    .1055982
   _Inuts2_4 |  -.1866822   .1179415    -1.58   0.114    -.4179918    .0446274
   _Inuts2_5 |  -.4015715   .2213363    -1.81   0.070    -.8356612    .0325182
   _Inuts2_6 |          0  (omitted)
        pats |   .0213528   .0104589     2.04   0.041     .0008405    .0418651
     lagcits |   -.000041   .0011893    -0.03   0.972    -.0023736    .0022915
     lagcit2 |   .0010938   .0012302     0.89   0.374    -.0013189    .0035065
     lagcit3 |   .0024074   .0014962     1.61   0.108    -.0005269    .0053418
     lagcit4 |   .0023772   .0013331     1.78   0.075    -.0002373    .0049918
     lagcit5 |   .0023629   .0011472     2.06   0.040     .0001131    .0046128
       _cons |   5.445385   .7938919     6.86   0.000     3.888386    7.002383
-------------+----------------------------------------------------------------
     sigma_u |  .64633045
     sigma_e |   .3557257
         rho |  .76750958   (fraction of variance due to u_i)
------------------------------------------------------------------------------

. xi: xtreg logwage $expl_17, fe robust  ;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: female omitted because of collinearity
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Ivuosi_1996 omitted because of collinearity
note: _Ivuosi_1997 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_2 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_7 omitted because of collinearity
note: _Isector_8 omitted because of collinearity
note: _Isector_11 omitted because of collinearity
note: _Isector_15 omitted because of collinearity
note: _Isector_23 omitted because of collinearity
note: _Isector_28 omitted because of collinearity
note: _Isector_32 omitted because of collinearity
note: _Isector_33 omitted because of collinearity
note: _Isector_34 omitted because of collinearity
note: _Isector_36 omitted because of collinearity
note: _Isector_37 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Isector_45 omitted because of collinearity
note: _Isector_46 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_64 omitted because of collinearity
note: _Ieduc_66 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_73 omitted because of collinearity
note: _Ieduc_76 omitted because of collinearity
note: _Ieduc_77 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity
note: _Ieduc_86 omitted because of collinearity
note: _Ieduc_87 omitted because of collinearity
note: _Inuts2_6 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =      4938
Group variable: id                              Number of groups   =      1789

R-sq:  within  = 0.0798                         Obs per group: min =         1
       between = 0.0679                                        avg =       2.8
       overall = 0.0631                                        max =         3

                                                F(44,1788)         =         .
corr(u_i, Xb)  = -0.6313                        Prob > F           =         .

                                  (Std. Err. adjusted for 1789 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .1784453   .0483767     3.69   0.000     .0835645     .273326
        age2 |  -.0014366   .0004952    -2.90   0.004    -.0024079   -.0004653
      tenure |   .0076252   .0021291     3.58   0.000     .0034493     .011801
      female |          0  (omitted)
      months |   .0051441   .0046836     1.10   0.272    -.0040418    .0143299
         emp |   .0042505   .0009955     4.27   0.000      .002298     .006203
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |          0  (omitted)
_Ivuosi_1995 |          0  (omitted)
_Ivuosi_1996 |          0  (omitted)
_Ivuosi_1997 |          0  (omitted)
_Ivuosi_1998 |   .0266378   .0103043     2.59   0.010     .0064279    .0468476
_Ivuosi_1999 |          0  (omitted)
  _Isector_2 |          0  (omitted)
  _Isector_3 |          0  (omitted)
  _Isector_4 |   .0418851   .0160068     2.62   0.009     .0104912     .073279
  _Isector_5 |  -.2892426   .1990242    -1.45   0.146     -.679587    .1011019
  _Isector_6 |          0  (omitted)
  _Isector_7 |          0  (omitted)
  _Isector_8 |          0  (omitted)
  _Isector_9 |   .1257711   .2581634     0.49   0.626    -.3805627    .6321049
 _Isector_10 |  -.4156566   .2323568    -1.79   0.074    -.8713761    .0400629
 _Isector_11 |          0  (omitted)
 _Isector_12 |  -.1646212   .1345902    -1.22   0.221    -.4285917    .0993494
 _Isector_13 |   .0374116   .1161651     0.32   0.747    -.1904221    .2652452
 _Isector_14 |   -.093499   .1477847    -0.63   0.527    -.3833479    .1963498
 _Isector_15 |          0  (omitted)
 _Isector_16 |  -.2408628   .1533281    -1.57   0.116     -.541584    .0598583
 _Isector_17 |  -.0380504   .2204407    -0.17   0.863    -.4703989     .394298
 _Isector_18 |  -.0785682   .1340571    -0.59   0.558    -.3414932    .1843568
 _Isector_19 |  -.0892293   .2087958    -0.43   0.669    -.4987388    .3202801
 _Isector_20 |   .0093557   .1483098     0.06   0.950    -.2815231    .3002345
 _Isector_21 |  -.3508902   .2413232    -1.45   0.146    -.8241954     .122415
 _Isector_22 |  -.0213131   .1314701    -0.16   0.871    -.2791643     .236538
 _Isector_23 |          0  (omitted)
 _Isector_24 |  -.2066756   .1681117    -1.23   0.219    -.5363917    .1230405
 _Isector_25 |   .0140922   .1204582     0.12   0.907    -.2221615    .2503458
 _Isector_26 |  -.0131227   .1339911    -0.10   0.922    -.2759183    .2496729
 _Isector_27 |   .0579948   .1677632     0.35   0.730    -.2710377    .3870273
 _Isector_28 |          0  (omitted)
 _Isector_29 |  -.1147585   .1347794    -0.85   0.395    -.3791002    .1495833
 _Isector_30 |   .0478494   .1405747     0.34   0.734    -.2278585    .3235574
 _Isector_31 |    .355744   .1483208     2.40   0.017     .0648437    .6466443
 _Isector_32 |          0  (omitted)
 _Isector_33 |          0  (omitted)
 _Isector_34 |          0  (omitted)
 _Isector_35 |  -.1038004   .2321152    -0.45   0.655     -.559046    .3514451
 _Isector_36 |          0  (omitted)
 _Isector_37 |          0  (omitted)
 _Isector_38 |   .1465752   .1678723     0.87   0.383    -.1826715    .4758218
 _Isector_39 |   .0304928   .1315803     0.23   0.817    -.2275746    .2885602
 _Isector_40 |  -.1059441   .2091011    -0.51   0.612    -.5160524    .3041641
 _Isector_41 |  -.0115068   .1245443    -0.09   0.926    -.2557744    .2327608
 _Isector_42 |  -.0253722   .1338969    -0.19   0.850     -.287983    .2372386
 _Isector_43 |          0  (omitted)
 _Isector_44 |   2.045178   .8387824     2.44   0.015     .4000813    3.690275
 _Isector_45 |          0  (omitted)
 _Isector_46 |          0  (omitted)
   _Ieduc_32 |          0  (omitted)
   _Ieduc_33 |          0  (omitted)
   _Ieduc_35 |   .0252241   .0485931     0.52   0.604    -.0700812    .1205294
   _Ieduc_36 |          0  (omitted)
   _Ieduc_37 |          0  (omitted)
   _Ieduc_38 |          0  (omitted)
   _Ieduc_53 |          0  (omitted)
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |    .807837   .3282871     2.46   0.014     .1639703    1.451704
   _Ieduc_56 |          0  (omitted)
   _Ieduc_57 |          0  (omitted)
   _Ieduc_63 |          0  (omitted)
   _Ieduc_64 |          0  (omitted)
   _Ieduc_65 |   .9627395   .2886771     3.34   0.001     .3965596    1.528919
   _Ieduc_66 |          0  (omitted)
   _Ieduc_72 |          0  (omitted)
   _Ieduc_73 |          0  (omitted)
   _Ieduc_74 |   1.009089   .2851023     3.54   0.000     .4499208    1.568258
   _Ieduc_75 |   1.038551   .2299714     4.52   0.000     .5875105    1.489592
   _Ieduc_76 |          0  (omitted)
   _Ieduc_77 |          0  (omitted)
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |   1.018418   .2887104     3.53   0.000     .4521725    1.584663
   _Ieduc_85 |    1.09266   .2603766     4.20   0.000     .5819856    1.603335
   _Ieduc_86 |          0  (omitted)
   _Ieduc_87 |          0  (omitted)
   _Ieduc_99 |   .2596493   .1168193     2.22   0.026     .0305327     .488766
   _Inuts2_2 |  -.2733812   .1914481    -1.43   0.153    -.6488667    .1021043
   _Inuts2_3 |  -.0592342   .1312693    -0.45   0.652    -.3166917    .1982232
   _Inuts2_4 |  -.1392658   .1567491    -0.89   0.374    -.4466964    .1681649
   _Inuts2_5 |  -.0654586   .1172684    -0.56   0.577    -.2954561    .1645388
   _Inuts2_6 |          0  (omitted)
        pats |   .0288395    .013707     2.10   0.036     .0019561    .0557229
     lagcits |  -.0004106   .0015748    -0.26   0.794    -.0034992     .002678
     lagcit2 |   .0011186   .0017919     0.62   0.533    -.0023958     .004633
     lagcit3 |   .0034964   .0019673     1.78   0.076     -.000362    .0073548
     lagcit4 |   .0033232   .0018644     1.78   0.075    -.0003334    .0069798
     lagcit5 |   .0042457   .0016527     2.57   0.010     .0010042    .0074872
     lagcit6 |   .0050588   .0025729     1.97   0.049     .0000126    .0101051
       _cons |   4.789117   1.215923     3.94   0.000     2.404337    7.173897
-------------+----------------------------------------------------------------
     sigma_u |  .65930706
     sigma_e |  .37839923
         rho |  .75221843   (fraction of variance due to u_i)
------------------------------------------------------------------------------

.  /* TABLE 4 */
> xi: xtreg logwage $expl_18, fe robust  ;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: female omitted because of collinearity
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Ivuosi_1996 omitted because of collinearity
note: _Ivuosi_1997 omitted because of collinearity
note: _Ivuosi_1998 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_2 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_4 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_7 omitted because of collinearity
note: _Isector_8 omitted because of collinearity
note: _Isector_11 omitted because of collinearity
note: _Isector_14 omitted because of collinearity
note: _Isector_15 omitted because of collinearity
note: _Isector_23 omitted because of collinearity
note: _Isector_28 omitted because of collinearity
note: _Isector_30 omitted because of collinearity
note: _Isector_31 omitted because of collinearity
note: _Isector_32 omitted because of collinearity
note: _Isector_33 omitted because of collinearity
note: _Isector_34 omitted because of collinearity
note: _Isector_36 omitted because of collinearity
note: _Isector_37 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Isector_44 omitted because of collinearity
note: _Isector_45 omitted because of collinearity
note: _Isector_46 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_64 omitted because of collinearity
note: _Ieduc_66 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_73 omitted because of collinearity
note: _Ieduc_76 omitted because of collinearity
note: _Ieduc_77 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity
note: _Ieduc_84 omitted because of collinearity
note: _Ieduc_86 omitted because of collinearity
note: _Ieduc_87 omitted because of collinearity
note: _Ieduc_99 omitted because of collinearity
note: _Inuts2_6 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =      3206
Group variable: id                              Number of groups   =      1691

R-sq:  within  = 0.0560                         Obs per group: min =         1
       between = 0.0572                                        avg =       1.9
       overall = 0.0516                                        max =         2

                                                F(37,1690)         =         .
corr(u_i, Xb)  = -0.4061                        Prob > F           =         .

                                  (Std. Err. adjusted for 1691 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .1414967   .0891409     1.59   0.113    -.0333415    .3163348
        age2 |   -.001338    .000922    -1.45   0.147    -.0031464    .0004704
      tenure |   .0053276   .0035724     1.49   0.136    -.0016793    .0123345
      female |          0  (omitted)
      months |  -.0037991   .0056996    -0.67   0.505    -.0149781    .0073799
         emp |   .0064346   .0018716     3.44   0.001     .0027638    .0101054
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |          0  (omitted)
_Ivuosi_1995 |          0  (omitted)
_Ivuosi_1996 |          0  (omitted)
_Ivuosi_1997 |          0  (omitted)
_Ivuosi_1998 |          0  (omitted)
_Ivuosi_1999 |          0  (omitted)
  _Isector_2 |          0  (omitted)
  _Isector_3 |          0  (omitted)
  _Isector_4 |          0  (omitted)
  _Isector_5 |   -.058058   .0740328    -0.78   0.433    -.2032637    .0871477
  _Isector_6 |          0  (omitted)
  _Isector_7 |          0  (omitted)
  _Isector_8 |          0  (omitted)
  _Isector_9 |   .4581628   .3008466     1.52   0.128    -.1319083    1.048234
 _Isector_10 |  -.4131051   .2593218    -1.59   0.111    -.9217309    .0955206
 _Isector_11 |          0  (omitted)
 _Isector_12 |  -.2255802   .0617609    -3.65   0.000    -.3467161   -.1044443
 _Isector_13 |   .0262826   .0907103     0.29   0.772    -.1516338    .2041989
 _Isector_14 |          0  (omitted)
 _Isector_15 |          0  (omitted)
 _Isector_16 |  -.1726879   .1304855    -1.32   0.186    -.4286181    .0832423
 _Isector_17 |  -.0149941    .251901    -0.06   0.953    -.5090649    .4790766
 _Isector_18 |  -.1260082   .1177004    -1.07   0.285     -.356862    .1048457
 _Isector_19 |  -.3789215   .3181781    -1.19   0.234    -1.002986     .245143
 _Isector_20 |    .025715   .1156694     0.22   0.824    -.2011553    .2525853
 _Isector_21 |  -.8425323   .3229802    -2.61   0.009    -1.476016   -.2090489
 _Isector_22 |  -.1135319   .1552261    -0.73   0.465    -.4179875    .1909236
 _Isector_23 |          0  (omitted)
 _Isector_24 |   .1453388   .1486266     0.98   0.328    -.1461727    .4368503
 _Isector_25 |   .0985053     .09798     1.01   0.315    -.0936697    .2906802
 _Isector_26 |  -.0313872   .0561797    -0.56   0.576    -.1415763    .0788019
 _Isector_27 |   .1528414   .1950926     0.78   0.433     -.229807    .5354899
 _Isector_28 |          0  (omitted)
 _Isector_29 |  -.1473153   .1067266    -1.38   0.168    -.3566455    .0620148
 _Isector_30 |          0  (omitted)
 _Isector_31 |          0  (omitted)
 _Isector_32 |          0  (omitted)
 _Isector_33 |          0  (omitted)
 _Isector_34 |          0  (omitted)
 _Isector_35 |   -.378818   .2746957    -1.38   0.168    -.9175976    .1599615
 _Isector_36 |          0  (omitted)
 _Isector_37 |          0  (omitted)
 _Isector_38 |   .2181419   .1188115     1.84   0.067    -.0148913    .4511751
 _Isector_39 |   .0456682   .1234163     0.37   0.711    -.1963966    .2877331
 _Isector_40 |  -.2270708   .2280323    -1.00   0.319    -.6743262    .2201845
 _Isector_41 |  -.0623396   .1154454    -0.54   0.589    -.2887707    .1640914
 _Isector_42 |   .0789224   .0619049     1.27   0.203     -.042496    .2003407
 _Isector_43 |          0  (omitted)
 _Isector_44 |          0  (omitted)
 _Isector_45 |          0  (omitted)
 _Isector_46 |          0  (omitted)
   _Ieduc_32 |          0  (omitted)
   _Ieduc_33 |          0  (omitted)
   _Ieduc_35 |   -.365457   .0371846    -9.83   0.000    -.4383898   -.2925243
   _Ieduc_36 |          0  (omitted)
   _Ieduc_37 |          0  (omitted)
   _Ieduc_38 |          0  (omitted)
   _Ieduc_53 |          0  (omitted)
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |  -.3361732   .4834558    -0.70   0.487    -1.284408    .6120618
   _Ieduc_56 |          0  (omitted)
   _Ieduc_57 |          0  (omitted)
   _Ieduc_63 |          0  (omitted)
   _Ieduc_64 |          0  (omitted)
   _Ieduc_65 |    .051201   .3792551     0.14   0.893     -.692658      .79506
   _Ieduc_66 |          0  (omitted)
   _Ieduc_72 |          0  (omitted)
   _Ieduc_73 |          0  (omitted)
   _Ieduc_74 |  -.0960477   .0467421    -2.05   0.040    -.1877263   -.0043692
   _Ieduc_75 |   .3473271   .3104909     1.12   0.263      -.26166    .9563142
   _Ieduc_76 |          0  (omitted)
   _Ieduc_77 |          0  (omitted)
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |          0  (omitted)
   _Ieduc_85 |   .4277045   .3375373     1.27   0.205    -.2343305     1.08974
   _Ieduc_86 |          0  (omitted)
   _Ieduc_87 |          0  (omitted)
   _Ieduc_99 |          0  (omitted)
   _Inuts2_2 |   .0410688   .1036676     0.40   0.692    -.1622617    .2443992
   _Inuts2_3 |  -.0251584   .0795987    -0.32   0.752    -.1812807     .130964
   _Inuts2_4 |   .0764929   .1187293     0.64   0.519    -.1563791    .3093648
   _Inuts2_5 |  -.0868144   .0428341    -2.03   0.043    -.1708279   -.0028008
   _Inuts2_6 |          0  (omitted)
        pats |   .0273026   .0230638     1.18   0.237    -.0179339    .0725392
     lagcits |  -.0004337   .0021399    -0.20   0.839    -.0046309    .0037634
     lagcit2 |  -.0000181   .0031341    -0.01   0.995    -.0061653    .0061291
     lagcit3 |   .0045512   .0033837     1.35   0.179    -.0020854    .0111879
     lagcit4 |   .0055037   .0029566     1.86   0.063    -.0002953    .0113026
     lagcit5 |   .0057486   .0034071     1.69   0.092    -.0009339    .0124312
     lagcit6 |   .0071392   .0038111     1.87   0.061    -.0003359    .0146142
     lagcit7 |   .0035352   .0033263     1.06   0.288    -.0029889    .0100593
       _cons |   7.021019      2.182     3.22   0.001     2.741313    11.30072
-------------+----------------------------------------------------------------
     sigma_u |  .66377716
     sigma_e |  .39326904
         rho |  .74018014   (fraction of variance due to u_i)
------------------------------------------------------------------------------

. xi: reg D.(logwage $expl_11), vce(cluster id);
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity

Linear regression                                      Number of obs =   13419
                                                       F( 58,  2076) =       .
                                                       Prob > F      =       .
                                                       R-squared     =  0.0617
                                                       Root MSE      =  .39236

                                  (Std. Err. adjusted for 2077 clusters in id)
------------------------------------------------------------------------------
             |               Robust
   D.logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |
         D1. |          0  (omitted)
             |
        age2 |
         D1. |  -.0014161   .0001776    -7.98   0.000    -.0017643   -.0010679
             |
      tenure |
         D1. |   .0018308   .0016334     1.12   0.262    -.0013725     .005034
             |
      female |
         D1. |          0  (omitted)
             |
      months |
         D1. |   .0870123   .0087092     9.99   0.000     .0699327     .104092
             |
         emp |
         D1. |   .0008508   .0003358     2.53   0.011     .0001922    .0015094
             |
_Ivuosi_1992 |
         D1. |  -.0449234   .0098249    -4.57   0.000    -.0641911   -.0256558
             |
_Ivuosi_1993 |
         D1. |  -.0829982   .0113305    -7.33   0.000    -.1052185   -.0607778
             |
_Ivuosi_1994 |
         D1. |  -.0777308   .0117248    -6.63   0.000    -.1007245   -.0547372
             |
_Ivuosi_1995 |
         D1. |  -.0630494   .0129839    -4.86   0.000    -.0885122   -.0375866
             |
_Ivuosi_1996 |
         D1. |  -.0717169   .0141139    -5.08   0.000    -.0993958   -.0440381
             |
_Ivuosi_1997 |
         D1. |  -.0594921   .0138203    -4.30   0.000    -.0865951   -.0323891
             |
_Ivuosi_1998 |
         D1. |  -.0077175   .0141649    -0.54   0.586    -.0354964    .0200614
             |
_Ivuosi_1999 |
         D1. |          0  (omitted)
             |
  _Isector_2 |
         D1. |   .0156177    .089414     0.17   0.861    -.1597328    .1909682
             |
  _Isector_3 |
         D1. |          0  (omitted)
             |
  _Isector_4 |
         D1. |   .1131271   .1618007     0.70   0.485    -.2041814    .4304356
             |
  _Isector_5 |
         D1. |  -.0763761   .0270474    -2.82   0.005    -.1294189   -.0233332
             |
  _Isector_6 |
         D1. |          0  (omitted)
             |
  _Isector_7 |
         D1. |          0  (omitted)
             |
  _Isector_8 |
         D1. |          0  (omitted)
             |
  _Isector_9 |
         D1. |   .0005087   .1229574     0.00   0.997     -.240624    .2416413
             |
 _Isector_10 |
         D1. |  -.0693958   .0899937    -0.77   0.441    -.2458831    .1070914
             |
 _Isector_11 |
         D1. |          0  (omitted)
             |
 _Isector_12 |
         D1. |  -.0562175   .0654687    -0.86   0.391    -.1846086    .0721737
             |
 _Isector_13 |
         D1. |  -.0411043   .0565763    -0.73   0.468    -.1520565    .0698479
             |
 _Isector_14 |
         D1. |   .0594786   .0817874     0.73   0.467    -.1009153    .2198726
             |
 _Isector_15 |
         D1. |   .1625466   .1681426     0.97   0.334     -.167199    .4922923
             |
 _Isector_16 |
         D1. |  -.1160547   .0773688    -1.50   0.134    -.2677831    .0356738
             |
 _Isector_17 |
         D1. |    .018789   .0616331     0.30   0.761      -.10208    .1396581
             |
 _Isector_18 |
         D1. |  -.0295038   .0570217    -0.52   0.605    -.1413294    .0823218
             |
 _Isector_19 |
         D1. |  -.0860435   .0710105    -1.21   0.226    -.2253028    .0532158
             |
 _Isector_20 |
         D1. |  -.0599979   .0700095    -0.86   0.392     -.197294    .0772983
             |
 _Isector_21 |
         D1. |  -.1023557   .0828437    -1.24   0.217     -.264821    .0601096
             |
 _Isector_22 |
         D1. |  -.0293271   .0578134    -0.51   0.612    -.1427054    .0840512
             |
 _Isector_23 |
         D1. |  -.1027228    .116224    -0.88   0.377    -.3306506     .125205
             |
 _Isector_24 |
         D1. |   .0301072   .1536808     0.20   0.845    -.2712774    .3314918
             |
 _Isector_25 |
         D1. |  -.1206096    .092271    -1.31   0.191    -.3015629    .0603438
             |
 _Isector_26 |
         D1. |   .0256827   .1641854     0.16   0.876    -.2963024    .3476678
             |
 _Isector_27 |
         D1. |   .1418478   .1945263     0.73   0.466    -.2396392    .5233348
             |
 _Isector_28 |
         D1. |   .0151602   .1178306     0.13   0.898    -.2159183    .2462387
             |
 _Isector_29 |
         D1. |  -.1029189   .0580582    -1.77   0.076    -.2167772    .0109395
             |
 _Isector_30 |
         D1. |  -.0530674   .0810487    -0.65   0.513    -.2120126    .1058778
             |
 _Isector_31 |
         D1. |   -.562981   .0981333    -5.74   0.000    -.7554308   -.3705311
             |
 _Isector_32 |
         D1. |   -.281608   .1126506    -2.50   0.013    -.5025278   -.0606882
             |
 _Isector_33 |
         D1. |  -.2946025   .1149379    -2.56   0.010     -.520008    -.069197
             |
 _Isector_34 |
         D1. |   -.617606   .0834835    -7.40   0.000    -.7813261   -.4538859
             |
 _Isector_35 |
         D1. |   .0192056   .1031549     0.19   0.852    -.1830921    .2215034
             |
 _Isector_36 |
         D1. |   1.896401   .0253595    74.78   0.000     1.846668    1.946133
             |
 _Isector_37 |
         D1. |          0  (omitted)
             |
 _Isector_38 |
         D1. |  -.1849394   .1657157    -1.12   0.265    -.5099257    .1400469
             |
 _Isector_39 |
         D1. |  -.1830364   .1650798    -1.11   0.268    -.5067757    .1407029
             |
 _Isector_40 |
         D1. |  -.0189743   .0954523    -0.20   0.842    -.2061665    .1682178
             |
 _Isector_41 |
         D1. |  -.0779796    .076263    -1.02   0.307    -.2275395    .0715804
             |
 _Isector_42 |
         D1. |   -.049433   .0503737    -0.98   0.327    -.1482213    .0493554
             |
 _Isector_43 |
         D1. |  -.2985978   .0890365    -3.35   0.001     -.473208   -.1239876
             |
 _Isector_44 |
         D1. |   1.231642   .6022092     2.05   0.041     .0506451    2.412639
             |
 _Isector_45 |
         D1. |   .2349099    .142129     1.65   0.099    -.0438202      .51364
             |
 _Isector_46 |
         D1. |   -.102388   .0687825    -1.49   0.137    -.2372779     .032502
             |
   _Ieduc_32 |
         D1. |          0  (omitted)
             |
   _Ieduc_33 |
         D1. |          0  (omitted)
             |
   _Ieduc_35 |
         D1. |  -.2744466   .1033693    -2.66   0.008    -.4771649   -.0717283
             |
   _Ieduc_36 |
         D1. |          0  (omitted)
             |
   _Ieduc_37 |
         D1. |          0  (omitted)
             |
   _Ieduc_38 |
         D1. |          0  (omitted)
             |
   _Ieduc_53 |
         D1. |          0  (omitted)
             |
   _Ieduc_54 |
         D1. |          0  (omitted)
             |
   _Ieduc_55 |
         D1. |   .0458435   .0830082     0.55   0.581    -.1169444    .2086315
             |
   _Ieduc_56 |
         D1. |          0  (omitted)
             |
   _Ieduc_57 |
         D1. |          0  (omitted)
             |
   _Ieduc_63 |
         D1. |          0  (omitted)
             |
   _Ieduc_64 |
         D1. |   .2627501   .0864766     3.04   0.002     .0931602    .4323399
             |
   _Ieduc_65 |
         D1. |   .2065072   .0600531     3.44   0.001     .0887366    .3242778
             |
   _Ieduc_66 |
         D1. |   .2136091   .0564213     3.79   0.000     .1029609    .3242573
             |
   _Ieduc_72 |
         D1. |          0  (omitted)
             |
   _Ieduc_73 |
         D1. |          0  (omitted)
             |
   _Ieduc_74 |
         D1. |   .2160208   .0550212     3.93   0.000     .1081183    .3239232
             |
   _Ieduc_75 |
         D1. |   .2702863   .0411343     6.57   0.000     .1896174    .3509551
             |
   _Ieduc_76 |
         D1. |  -.0310359   .0119547    -2.60   0.009    -.0544803   -.0075914
             |
   _Ieduc_77 |
         D1. |   .1391268     .05498     2.53   0.011     .0313051    .2469484
             |
   _Ieduc_83 |
         D1. |          0  (omitted)
             |
   _Ieduc_84 |
         D1. |    .225593   .0557393     4.05   0.000     .1162823    .3349037
             |
   _Ieduc_85 |
         D1. |   .3605683   .0718833     5.02   0.000     .2195974    .5015392
             |
   _Ieduc_86 |
         D1. |          0  (omitted)
             |
   _Ieduc_87 |
         D1. |   .1392119   .0566215     2.46   0.014      .028171    .2502528
             |
   _Ieduc_99 |
         D1. |   .2453111   .1002948     2.45   0.015     .0486222    .4419999
             |
   _Inuts2_2 |
         D1. |   .0075021   .0666204     0.11   0.910    -.1231476    .1381519
             |
   _Inuts2_3 |
         D1. |   .0390519   .0526539     0.74   0.458    -.0642081    .1423119
             |
   _Inuts2_4 |
         D1. |   .0980867   .1101171     0.89   0.373    -.1178648    .3140381
             |
   _Inuts2_5 |
         D1. |  -.1192241   .0655853    -1.82   0.069    -.2478438    .0093956
             |
   _Inuts2_6 |
         D1. |   .0566902    .012833     4.42   0.000     .0315233    .0818572
             |
        pats |
         D1. |   .0128963   .0060788     2.12   0.034     .0009752    .0248174
             |
       _cons |   .1658034   .0157225    10.55   0.000     .1349698    .1966369
------------------------------------------------------------------------------

. xi: reg D.(logwage $expl_12), vce(cluster id);
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity

Linear regression                                      Number of obs =   11736
                                                       F( 57,  2043) =       .
                                                       Prob > F      =       .
                                                       R-squared     =  0.0193
                                                       Root MSE      =  .38092

                                  (Std. Err. adjusted for 2044 clusters in id)
------------------------------------------------------------------------------
             |               Robust
   D.logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |
         D1. |          0  (omitted)
             |
        age2 |
         D1. |  -.0011623   .0001914    -6.07   0.000    -.0015376    -.000787
             |
      tenure |
         D1. |   .0026019   .0016289     1.60   0.110    -.0005927    .0057965
             |
      female |
         D1. |          0  (omitted)
             |
      months |
         D1. |   .0277757   .0112423     2.47   0.014     .0057282    .0498232
             |
         emp |
         D1. |   .0009794   .0003441     2.85   0.004     .0003045    .0016542
             |
_Ivuosi_1992 |
         D1. |          0  (omitted)
             |
_Ivuosi_1993 |
         D1. |  -.0363894   .0088602    -4.11   0.000    -.0537654   -.0190135
             |
_Ivuosi_1994 |
         D1. |  -.0331639   .0100636    -3.30   0.001    -.0528999   -.0134279
             |
_Ivuosi_1995 |
         D1. |   -.027742   .0118926    -2.33   0.020     -.051065   -.0044191
             |
_Ivuosi_1996 |
         D1. |  -.0408923   .0132993    -3.07   0.002    -.0669738   -.0148108
             |
_Ivuosi_1997 |
         D1. |  -.0389441   .0133176    -2.92   0.003    -.0650615   -.0128267
             |
_Ivuosi_1998 |
         D1. |   .0098512   .0141564     0.70   0.487    -.0179112    .0376137
             |
_Ivuosi_1999 |
         D1. |          0  (omitted)
             |
  _Isector_2 |
         D1. |   .1098464   .1003913     1.09   0.274    -.0870335    .3067263
             |
  _Isector_3 |
         D1. |          0  (omitted)
             |
  _Isector_4 |
         D1. |   .1453612   .1791007     0.81   0.417    -.2058778    .4966002
             |
  _Isector_5 |
         D1. |  -.1037178   .0271975    -3.81   0.000    -.1570556     -.05038
             |
  _Isector_6 |
         D1. |          0  (omitted)
             |
  _Isector_7 |
         D1. |          0  (omitted)
             |
  _Isector_8 |
         D1. |          0  (omitted)
             |
  _Isector_9 |
         D1. |  -.0010638   .1526966    -0.01   0.994     -.300521    .2983934
             |
 _Isector_10 |
         D1. |  -.0924702   .0970657    -0.95   0.341    -.2828282    .0978879
             |
 _Isector_11 |
         D1. |          0  (omitted)
             |
 _Isector_12 |
         D1. |  -.0839759   .0674002    -1.25   0.213    -.2161562    .0482043
             |
 _Isector_13 |
         D1. |  -.0565026   .0616974    -0.92   0.360     -.177499    .0644938
             |
 _Isector_14 |
         D1. |   .0569191   .0817395     0.70   0.486    -.1033823    .2172206
             |
 _Isector_15 |
         D1. |   .2077817   .1792741     1.16   0.247    -.1437974    .5593607
             |
 _Isector_16 |
         D1. |  -.1430315   .0860004    -1.66   0.096    -.3116891    .0256261
             |
 _Isector_17 |
         D1. |   .0057984   .0633306     0.09   0.927    -.1184009    .1299976
             |
 _Isector_18 |
         D1. |  -.0360952   .0575124    -0.63   0.530    -.1488844    .0766939
             |
 _Isector_19 |
         D1. |  -.1135165     .07052    -1.61   0.108    -.2518152    .0247821
             |
 _Isector_20 |
         D1. |   -.075101   .0682782    -1.10   0.271    -.2090031    .0588011
             |
 _Isector_21 |
         D1. |  -.1324927   .0842812    -1.57   0.116    -.2977787    .0327933
             |
 _Isector_22 |
         D1. |  -.0725435    .059098    -1.23   0.220    -.1884421     .043355
             |
 _Isector_23 |
         D1. |  -.1285891   .1160913    -1.11   0.268    -.3562588    .0990806
             |
 _Isector_24 |
         D1. |   .0587271   .1802833     0.33   0.745    -.2948311    .4122853
             |
 _Isector_25 |
         D1. |  -.0486502   .0679041    -0.72   0.474    -.1818187    .0845182
             |
 _Isector_26 |
         D1. |   .1432788   .1443506     0.99   0.321    -.1398109    .4263685
             |
 _Isector_27 |
         D1. |   .2364986   .2496941     0.95   0.344    -.2531829    .7261801
             |
 _Isector_28 |
         D1. |   .2213859   .2524145     0.88   0.381    -.2736306    .7164024
             |
 _Isector_29 |
         D1. |  -.1110314   .0573498    -1.94   0.053    -.2235015    .0014387
             |
 _Isector_30 |
         D1. |  -.0708873   .0807216    -0.88   0.380    -.2291925    .0874179
             |
 _Isector_31 |
         D1. |  -.5410889   .1077712    -5.02   0.000    -.7524418    -.329736
             |
 _Isector_32 |
         D1. |  -.1158199   .0417172    -2.78   0.006    -.1976326   -.0340072
             |
 _Isector_33 |
         D1. |          0  (omitted)
             |
 _Isector_34 |
         D1. |  -.6277389    .084473    -7.43   0.000    -.7934011   -.4620767
             |
 _Isector_35 |
         D1. |   .0213097   .1033497     0.21   0.837     -.181372    .2239914
             |
 _Isector_36 |
         D1. |          0  (omitted)
             |
 _Isector_37 |
         D1. |          0  (omitted)
             |
 _Isector_38 |
         D1. |  -.1452593    .145401    -1.00   0.318    -.4304089    .1398904
             |
 _Isector_39 |
         D1. |  -.2054604   .1723611    -1.19   0.233    -.5434821    .1325613
             |
 _Isector_40 |
         D1. |  -.0179025   .0895675    -0.20   0.842    -.1935558    .1577507
             |
 _Isector_41 |
         D1. |  -.1153605    .073163    -1.58   0.115    -.2588424    .0281214
             |
 _Isector_42 |
         D1. |  -.0709479   .0489381    -1.45   0.147    -.1669217    .0250259
             |
 _Isector_43 |
         D1. |          0  (omitted)
             |
 _Isector_44 |
         D1. |   1.217572   .6006673     2.03   0.043     .0395881    2.395557
             |
 _Isector_45 |
         D1. |   .4326788   .2173431     1.99   0.047     .0064416     .858916
             |
 _Isector_46 |
         D1. |  -.0966084   .0768726    -1.26   0.209    -.2473653    .0541485
             |
   _Ieduc_32 |
         D1. |          0  (omitted)
             |
   _Ieduc_33 |
         D1. |          0  (omitted)
             |
   _Ieduc_35 |
         D1. |    -.32894   .1209221    -2.72   0.007    -.5660835   -.0917966
             |
   _Ieduc_36 |
         D1. |          0  (omitted)
             |
   _Ieduc_37 |
         D1. |          0  (omitted)
             |
   _Ieduc_38 |
         D1. |          0  (omitted)
             |
   _Ieduc_53 |
         D1. |          0  (omitted)
             |
   _Ieduc_54 |
         D1. |          0  (omitted)
             |
   _Ieduc_55 |
         D1. |  -.0271461   .1030423    -0.26   0.792     -.229225    .1749327
             |
   _Ieduc_56 |
         D1. |          0  (omitted)
             |
   _Ieduc_57 |
         D1. |          0  (omitted)
             |
   _Ieduc_63 |
         D1. |          0  (omitted)
             |
   _Ieduc_64 |
         D1. |   .1829102   .0851081     2.15   0.032     .0160024    .3498179
             |
   _Ieduc_65 |
         D1. |   .1094022   .0753431     1.45   0.147    -.0383552    .2571596
             |
   _Ieduc_66 |
         D1. |   .1453538   .0638186     2.28   0.023     .0201975    .2705102
             |
   _Ieduc_72 |
         D1. |          0  (omitted)
             |
   _Ieduc_73 |
         D1. |          0  (omitted)
             |
   _Ieduc_74 |
         D1. |   .1561598   .0622141     2.51   0.012     .0341501    .2781695
             |
   _Ieduc_75 |
         D1. |   .1649816   .0575121     2.87   0.004     .0521932    .2777699
             |
   _Ieduc_76 |
         D1. |          0  (omitted)
             |
   _Ieduc_77 |
         D1. |   .0787583   .0621605     1.27   0.205    -.0431463    .2006628
             |
   _Ieduc_83 |
         D1. |          0  (omitted)
             |
   _Ieduc_84 |
         D1. |   .1578974    .065182     2.42   0.016     .0300673    .2857275
             |
   _Ieduc_85 |
         D1. |   .2726231   .0839175     3.25   0.001     .1080502    .4371959
             |
   _Ieduc_86 |
         D1. |          0  (omitted)
             |
   _Ieduc_87 |
         D1. |   .0820891   .0637861     1.29   0.198    -.0430034    .2071816
             |
   _Ieduc_99 |
         D1. |   .1457591   .0995413     1.46   0.143    -.0494539    .3409721
             |
   _Inuts2_2 |
         D1. |   .0275587   .0777973     0.35   0.723    -.1250117     .180129
             |
   _Inuts2_3 |
         D1. |   .0424891   .0599642     0.71   0.479    -.0751083    .1600865
             |
   _Inuts2_4 |
         D1. |   .0071435   .0734758     0.10   0.923    -.1369518    .1512387
             |
   _Inuts2_5 |
         D1. |  -.0830946   .0617924    -1.34   0.179    -.2042773    .0380881
             |
   _Inuts2_6 |
         D1. |   .0628464   .0127157     4.94   0.000     .0379093    .0877836
             |
        pats |
         D1. |   .0154983   .0068006     2.28   0.023     .0021616    .0288351
             |
     lagcits |
         D1. |   .0001798    .000436     0.41   0.680    -.0006753     .001035
             |
       _cons |   .1426136   .0171731     8.30   0.000     .1089349    .1762922
------------------------------------------------------------------------------

.  xi: reg D.(logwage $expl_13), vce(cluster id);
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity

Linear regression                                      Number of obs =   10063
                                                       F( 56,  2003) =       .
                                                       Prob > F      =       .
                                                       R-squared     =  0.0188
                                                       Root MSE      =  .38384

                                  (Std. Err. adjusted for 2004 clusters in id)
------------------------------------------------------------------------------
             |               Robust
   D.logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |
         D1. |          0  (omitted)
             |
        age2 |
         D1. |  -.0011342   .0002284    -4.97   0.000     -.001582   -.0006864
             |
      tenure |
         D1. |   .0029485   .0016111     1.83   0.067    -.0002112    .0061081
             |
      female |
         D1. |          0  (omitted)
             |
      months |
         D1. |   .0224695   .0098054     2.29   0.022     .0032396    .0416994
             |
         emp |
         D1. |   .0011034    .000371     2.97   0.003     .0003759     .001831
             |
_Ivuosi_1992 |
         D1. |          0  (omitted)
             |
_Ivuosi_1993 |
         D1. |          0  (omitted)
             |
_Ivuosi_1994 |
         D1. |  -.0020032   .0081927    -0.24   0.807    -.0180703     .014064
             |
_Ivuosi_1995 |
         D1. |  -.0038587    .010447    -0.37   0.712    -.0243469    .0166295
             |
_Ivuosi_1996 |
         D1. |  -.0238472   .0122134    -1.95   0.051    -.0477996    .0001051
             |
_Ivuosi_1997 |
         D1. |  -.0266595    .012655    -2.11   0.035    -.0514777   -.0018412
             |
_Ivuosi_1998 |
         D1. |   .0171325   .0138165     1.24   0.215    -.0099637    .0442287
             |
_Ivuosi_1999 |
         D1. |          0  (omitted)
             |
  _Isector_2 |
         D1. |   .0516372   .0932064     0.55   0.580    -.1311545    .2344289
             |
  _Isector_3 |
         D1. |          0  (omitted)
             |
  _Isector_4 |
         D1. |   .1705809   .2255731     0.76   0.450    -.2718015    .6129633
             |
  _Isector_5 |
         D1. |   -.114879   .0280911    -4.09   0.000    -.1699697   -.0597882
             |
  _Isector_6 |
         D1. |          0  (omitted)
             |
  _Isector_7 |
         D1. |          0  (omitted)
             |
  _Isector_8 |
         D1. |          0  (omitted)
             |
  _Isector_9 |
         D1. |   .0598322   .1680369     0.36   0.722    -.2697132    .3893775
             |
 _Isector_10 |
         D1. |  -.0820553   .1027103    -0.80   0.424    -.2834855     .119375
             |
 _Isector_11 |
         D1. |          0  (omitted)
             |
 _Isector_12 |
         D1. |  -.1164174   .0722361    -1.61   0.107    -.2580832    .0252484
             |
 _Isector_13 |
         D1. |  -.0433548   .0697779    -0.62   0.534    -.1801997    .0934901
             |
 _Isector_14 |
         D1. |   .0584776   .0878181     0.67   0.506    -.1137466    .2307019
             |
 _Isector_15 |
         D1. |   .2362009   .2399287     0.98   0.325     -.234335    .7067367
             |
 _Isector_16 |
         D1. |  -.0935712   .0935159    -1.00   0.317    -.2769698    .0898274
             |
 _Isector_17 |
         D1. |  -.0413677   .0755902    -0.55   0.584    -.1896114     .106876
             |
 _Isector_18 |
         D1. |  -.0408164   .0643693    -0.63   0.526    -.1670541    .0854214
             |
 _Isector_19 |
         D1. |  -.1288416   .0881683    -1.46   0.144    -.3017528    .0440696
             |
 _Isector_20 |
         D1. |  -.0805143   .0815507    -0.99   0.324    -.2404474    .0794189
             |
 _Isector_21 |
         D1. |  -.1489019   .1128825    -1.32   0.187    -.3702814    .0724775
             |
 _Isector_22 |
         D1. |  -.0746077   .0703896    -1.06   0.289    -.2126521    .0634367
             |
 _Isector_23 |
         D1. |  -.1732885   .1256731    -1.38   0.168    -.4197522    .0731752
             |
 _Isector_24 |
         D1. |   .0778814   .2457446     0.32   0.751    -.4040604    .5598233
             |
 _Isector_25 |
         D1. |  -.0361245   .0836769    -0.43   0.666    -.2002274    .1279784
             |
 _Isector_26 |
         D1. |  -.0103969   .0692937    -0.15   0.881    -.1462923    .1254984
             |
 _Isector_27 |
         D1. |   .2581612    .271245     0.95   0.341    -.2737907    .7901132
             |
 _Isector_28 |
         D1. |   .6496498   .1144455     5.68   0.000     .4252052    .8740944
             |
 _Isector_29 |
         D1. |  -.1084738   .0668667    -1.62   0.105    -.2396095    .0226618
             |
 _Isector_30 |
         D1. |  -.0516069   .0884037    -0.58   0.559    -.2249797     .121766
             |
 _Isector_31 |
         D1. |  -.5421259   .1472816    -3.68   0.000     -.830967   -.2532848
             |
 _Isector_32 |
         D1. |  -.1207955   .0430155    -2.81   0.005    -.2051554   -.0364356
             |
 _Isector_33 |
         D1. |          0  (omitted)
             |
 _Isector_34 |
         D1. |  -.6414019   .1133097    -5.66   0.000    -.8636191   -.4191848
             |
 _Isector_35 |
         D1. |   .0095624   .1192958     0.08   0.936    -.2243944    .2435192
             |
 _Isector_36 |
         D1. |          0  (omitted)
             |
 _Isector_37 |
         D1. |          0  (omitted)
             |
 _Isector_38 |
         D1. |   .0014152   .0700127     0.02   0.984    -.1358902    .1387206
             |
 _Isector_39 |
         D1. |  -.2474887   .2283331    -1.08   0.279    -.6952839    .2003064
             |
 _Isector_40 |
         D1. |  -.0386602   .0974066    -0.40   0.691     -.229689    .1523686
             |
 _Isector_41 |
         D1. |  -.0989209   .0786086    -1.26   0.208     -.253084    .0552422
             |
 _Isector_42 |
         D1. |  -.0634332    .055923    -1.13   0.257    -.1731064    .0462401
             |
 _Isector_43 |
         D1. |          0  (omitted)
             |
 _Isector_44 |
         D1. |    1.22916   .5985897     2.05   0.040     .0552364    2.403083
             |
 _Isector_45 |
         D1. |    .406392   .2281584     1.78   0.075    -.0410607    .8538447
             |
 _Isector_46 |
         D1. |  -.0170715   .0900579    -0.19   0.850    -.1936885    .1595455
             |
   _Ieduc_32 |
         D1. |          0  (omitted)
             |
   _Ieduc_33 |
         D1. |          0  (omitted)
             |
   _Ieduc_35 |
         D1. |  -.3051098   .1331303    -2.29   0.022    -.5661981   -.0440215
             |
   _Ieduc_36 |
         D1. |          0  (omitted)
             |
   _Ieduc_37 |
         D1. |          0  (omitted)
             |
   _Ieduc_38 |
         D1. |          0  (omitted)
             |
   _Ieduc_53 |
         D1. |          0  (omitted)
             |
   _Ieduc_54 |
         D1. |          0  (omitted)
             |
   _Ieduc_55 |
         D1. |  -.0610827   .1198865    -0.51   0.610     -.296198    .1740326
             |
   _Ieduc_56 |
         D1. |          0  (omitted)
             |
   _Ieduc_57 |
         D1. |          0  (omitted)
             |
   _Ieduc_63 |
         D1. |          0  (omitted)
             |
   _Ieduc_64 |
         D1. |   .2154536   .1042506     2.07   0.039     .0110027    .4199045
             |
   _Ieduc_65 |
         D1. |   .1042162   .0939031     1.11   0.267    -.0799419    .2883742
             |
   _Ieduc_66 |
         D1. |   .1951372   .0893015     2.19   0.029     .0200037    .3702707
             |
   _Ieduc_72 |
         D1. |          0  (omitted)
             |
   _Ieduc_73 |
         D1. |          0  (omitted)
             |
   _Ieduc_74 |
         D1. |   .2082526   .0881193     2.36   0.018     .0354376    .3810677
             |
   _Ieduc_75 |
         D1. |   .1689432   .0912544     1.85   0.064    -.0100204    .3479067
             |
   _Ieduc_76 |
         D1. |          0  (omitted)
             |
   _Ieduc_77 |
         D1. |          0  (omitted)
             |
   _Ieduc_83 |
         D1. |          0  (omitted)
             |
   _Ieduc_84 |
         D1. |   .2076424   .0981081     2.12   0.034     .0152377    .4000471
             |
   _Ieduc_85 |
         D1. |   .2891791   .1126684     2.57   0.010     .0682196    .5101386
             |
   _Ieduc_86 |
         D1. |          0  (omitted)
             |
   _Ieduc_87 |
         D1. |          0  (omitted)
             |
   _Ieduc_99 |
         D1. |   .1563334   .1082291     1.44   0.149      -.05592    .3685868
             |
   _Inuts2_2 |
         D1. |  -.0238634   .0445202    -0.54   0.592    -.1111741    .0634473
             |
   _Inuts2_3 |
         D1. |   .0496075   .0443878     1.12   0.264    -.0374436    .1366586
             |
   _Inuts2_4 |
         D1. |  -.0026076    .071638    -0.04   0.971    -.1431004    .1378852
             |
   _Inuts2_5 |
         D1. |  -.1198812   .0644833    -1.86   0.063    -.2463425    .0065801
             |
   _Inuts2_6 |
         D1. |   .0678462   .0129069     5.26   0.000     .0425337    .0931586
             |
        pats |
         D1. |   .0166939   .0075822     2.20   0.028     .0018242    .0315636
             |
     lagcits |
         D1. |  -4.49e-07     .00064    -0.00   0.999    -.0012555    .0012546
             |
     lagcit2 |
         D1. |  -.0003857   .0006533    -0.59   0.555    -.0016669    .0008955
             |
       _cons |   .1435953   .0207485     6.92   0.000     .1029043    .1842862
------------------------------------------------------------------------------

. xi: reg D.(logwage $expl_14), vce(cluster id);
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity

Linear regression                                      Number of obs =    8373
                                                       F( 53,  1923) =       .
                                                       Prob > F      =       .
                                                       R-squared     =  0.0214
                                                       Root MSE      =  .38965

                                  (Std. Err. adjusted for 1924 clusters in id)
------------------------------------------------------------------------------
             |               Robust
   D.logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |
         D1. |          0  (omitted)
             |
        age2 |
         D1. |  -.0011092   .0002432    -4.56   0.000    -.0015861   -.0006323
             |
      tenure |
         D1. |   .0029368   .0017193     1.71   0.088     -.000435    .0063087
             |
      female |
         D1. |          0  (omitted)
             |
      months |
         D1. |   .0252607   .0089765     2.81   0.005     .0076561    .0428654
             |
         emp |
         D1. |   .0012504   .0004234     2.95   0.003     .0004201    .0020807
             |
_Ivuosi_1992 |
         D1. |          0  (omitted)
             |
_Ivuosi_1993 |
         D1. |          0  (omitted)
             |
_Ivuosi_1994 |
         D1. |          0  (omitted)
             |
_Ivuosi_1995 |
         D1. |  -.0039013   .0082879    -0.47   0.638    -.0201554    .0123529
             |
_Ivuosi_1996 |
         D1. |  -.0257732    .010969    -2.35   0.019    -.0472855   -.0042608
             |
_Ivuosi_1997 |
         D1. |  -.0266513   .0120424    -2.21   0.027    -.0502687   -.0030338
             |
_Ivuosi_1998 |
         D1. |   .0153902   .0136891     1.12   0.261    -.0114568    .0422372
             |
_Ivuosi_1999 |
         D1. |          0  (omitted)
             |
  _Isector_2 |
         D1. |   .0312232   .1036699     0.30   0.763    -.1720941    .2345405
             |
  _Isector_3 |
         D1. |          0  (omitted)
             |
  _Isector_4 |
         D1. |   .3673442   .3232076     1.14   0.256    -.2665301    1.001218
             |
  _Isector_5 |
         D1. |  -.1186423   .0299845    -3.96   0.000    -.1774478   -.0598367
             |
  _Isector_6 |
         D1. |          0  (omitted)
             |
  _Isector_7 |
         D1. |          0  (omitted)
             |
  _Isector_8 |
         D1. |          0  (omitted)
             |
  _Isector_9 |
         D1. |   .0846907   .1997783     0.42   0.672     -.307114    .4764955
             |
 _Isector_10 |
         D1. |  -.0989348   .1393184    -0.71   0.478    -.3721659    .1742962
             |
 _Isector_11 |
         D1. |          0  (omitted)
             |
 _Isector_12 |
         D1. |   -.134167   .0881808    -1.52   0.128     -.307107     .038773
             |
 _Isector_13 |
         D1. |  -.0420508   .0860128    -0.49   0.625     -.210739    .1266375
             |
 _Isector_14 |
         D1. |   .0694264    .113358     0.61   0.540    -.1528911    .2917439
             |
 _Isector_15 |
         D1. |   .3206777   .3231063     0.99   0.321    -.3129979    .9543533
             |
 _Isector_16 |
         D1. |   -.099254   .1111212    -0.89   0.372    -.3171848    .1186767
             |
 _Isector_17 |
         D1. |  -.0586015   .0904766    -0.65   0.517     -.236044     .118841
             |
 _Isector_18 |
         D1. |  -.0515358   .0811769    -0.63   0.526    -.2107398    .1076682
             |
 _Isector_19 |
         D1. |  -.1386544   .1015551    -1.37   0.172    -.3378241    .0605153
             |
 _Isector_20 |
         D1. |  -.0823167    .096593    -0.85   0.394    -.2717548    .1071214
             |
 _Isector_21 |
         D1. |  -.1898683   .1380087    -1.38   0.169    -.4605308    .0807942
             |
 _Isector_22 |
         D1. |   -.096185   .0875492    -1.10   0.272    -.2678865    .0755164
             |
 _Isector_23 |
         D1. |  -.2264602   .1439171    -1.57   0.116    -.5087102    .0557898
             |
 _Isector_24 |
         D1. |   .0714577   .2667107     0.27   0.789    -.4516149    .5945302
             |
 _Isector_25 |
         D1. |  -.0329534   .1001494    -0.33   0.742    -.2293662    .1634593
             |
 _Isector_26 |
         D1. |  -.0230059   .0832929    -0.28   0.782    -.1863599    .1403481
             |
 _Isector_27 |
         D1. |   .2352274   .2991299     0.79   0.432    -.3514257    .8218805
             |
 _Isector_28 |
         D1. |          0  (omitted)
             |
 _Isector_29 |
         D1. |  -.1188646   .0802529    -1.48   0.139    -.2762565    .0385273
             |
 _Isector_30 |
         D1. |  -.0884085   .1014113    -0.87   0.383    -.2872962    .1104792
             |
 _Isector_31 |
         D1. |    -.45598   .1964268    -2.32   0.020    -.8412119   -.0707482
             |
 _Isector_32 |
         D1. |  -.1057263   .0468545    -2.26   0.024    -.1976173   -.0138353
             |
 _Isector_33 |
         D1. |          0  (omitted)
             |
 _Isector_34 |
         D1. |          0  (omitted)
             |
 _Isector_35 |
         D1. |  -.0324409   .1594148    -0.20   0.839     -.345085    .2802033
             |
 _Isector_36 |
         D1. |          0  (omitted)
             |
 _Isector_37 |
         D1. |          0  (omitted)
             |
 _Isector_38 |
         D1. |    .018787   .0838269     0.22   0.823    -.1456142    .1831882
             |
 _Isector_39 |
         D1. |   -.264274   .2330107    -1.13   0.257    -.7212542    .1927063
             |
 _Isector_40 |
         D1. |  -.0559394   .1132757    -0.49   0.621    -.2780955    .1662167
             |
 _Isector_41 |
         D1. |  -.1194038    .092823    -1.29   0.198    -.3014482    .0626405
             |
 _Isector_42 |
         D1. |  -.0898289   .0740413    -1.21   0.225    -.2350385    .0553808
             |
 _Isector_43 |
         D1. |          0  (omitted)
             |
 _Isector_44 |
         D1. |   1.211933   .5962216     2.03   0.042     .0426239    2.381242
             |
 _Isector_45 |
         D1. |   .3842425     .23293     1.65   0.099    -.0725794    .8410644
             |
 _Isector_46 |
         D1. |  -.0138461   .1056971    -0.13   0.896    -.2211391    .1934469
             |
   _Ieduc_32 |
         D1. |          0  (omitted)
             |
   _Ieduc_33 |
         D1. |          0  (omitted)
             |
   _Ieduc_35 |
         D1. |  -.2916323   .1338414    -2.18   0.029    -.5541219   -.0291427
             |
   _Ieduc_36 |
         D1. |          0  (omitted)
             |
   _Ieduc_37 |
         D1. |          0  (omitted)
             |
   _Ieduc_38 |
         D1. |          0  (omitted)
             |
   _Ieduc_53 |
         D1. |          0  (omitted)
             |
   _Ieduc_54 |
         D1. |          0  (omitted)
             |
   _Ieduc_55 |
         D1. |  -.0018698    .124488    -0.02   0.988    -.2460155     .242276
             |
   _Ieduc_56 |
         D1. |          0  (omitted)
             |
   _Ieduc_57 |
         D1. |          0  (omitted)
             |
   _Ieduc_63 |
         D1. |          0  (omitted)
             |
   _Ieduc_64 |
         D1. |   .4217684   .1670433     2.52   0.012     .0941633    .7493736
             |
   _Ieduc_65 |
         D1. |   .1098282   .1147883     0.96   0.339    -.1152944    .3349507
             |
   _Ieduc_66 |
         D1. |   .1914468   .1284715     1.49   0.136    -.0605112    .4434048
             |
   _Ieduc_72 |
         D1. |          0  (omitted)
             |
   _Ieduc_73 |
         D1. |          0  (omitted)
             |
   _Ieduc_74 |
         D1. |   .2043045   .1282419     1.59   0.111    -.0472032    .4558123
             |
   _Ieduc_75 |
         D1. |   .3056555   .1362139     2.24   0.025      .038513     .572798
             |
   _Ieduc_76 |
         D1. |          0  (omitted)
             |
   _Ieduc_77 |
         D1. |          0  (omitted)
             |
   _Ieduc_83 |
         D1. |          0  (omitted)
             |
   _Ieduc_84 |
         D1. |   .2595489   .1390549     1.87   0.062    -.0131653    .5322631
             |
   _Ieduc_85 |
         D1. |   .4456733   .1677831     2.66   0.008     .1166174    .7747292
             |
   _Ieduc_86 |
         D1. |          0  (omitted)
             |
   _Ieduc_87 |
         D1. |          0  (omitted)
             |
   _Ieduc_99 |
         D1. |   .2312273   .1521734     1.52   0.129    -.0672148    .5296695
             |
   _Inuts2_2 |
         D1. |  -.0197883   .0661541    -0.30   0.765    -.1495296    .1099529
             |
   _Inuts2_3 |
         D1. |   .0297236   .0601077     0.49   0.621    -.0881594    .1476066
             |
   _Inuts2_4 |
         D1. |  -.0018218   .0898249    -0.02   0.984    -.1779863    .1743426
             |
   _Inuts2_5 |
         D1. |  -.1538666   .0909063    -1.69   0.091    -.3321519    .0244186
             |
   _Inuts2_6 |
         D1. |   .0695815   .0133169     5.23   0.000     .0434645    .0956986
             |
        pats |
         D1. |   .0199526   .0085052     2.35   0.019     .0032722    .0366331
             |
     lagcits |
         D1. |  -.0001238   .0007829    -0.16   0.874    -.0016592    .0014116
             |
     lagcit2 |
         D1. |  -.0007202   .0009022    -0.80   0.425    -.0024897    .0010492
             |
     lagcit3 |
         D1. |  -.0004205   .0008109    -0.52   0.604    -.0020108    .0011697
             |
       _cons |   .1414514   .0224486     6.30   0.000     .0974253    .1854774
------------------------------------------------------------------------------

. xi: reg D.(logwage $expl_15), vce(cluster id);
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity

Linear regression                                      Number of obs =    6558
                                                       F( 50,  1833) =       .
                                                       Prob > F      =       .
                                                       R-squared     =  0.0250
                                                       Root MSE      =  .40288

                                  (Std. Err. adjusted for 1834 clusters in id)
------------------------------------------------------------------------------
             |               Robust
   D.logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |
         D1. |          0  (omitted)
             |
        age2 |
         D1. |  -.0012814      .0003    -4.27   0.000    -.0018698   -.0006931
             |
      tenure |
         D1. |   .0041533   .0016003     2.60   0.010     .0010148    .0072919
             |
      female |
         D1. |          0  (omitted)
             |
      months |
         D1. |   .0199341   .0090426     2.20   0.028     .0021993    .0376689
             |
         emp |
         D1. |   .0019787   .0005279     3.75   0.000     .0009434     .003014
             |
_Ivuosi_1992 |
         D1. |          0  (omitted)
             |
_Ivuosi_1993 |
         D1. |          0  (omitted)
             |
_Ivuosi_1994 |
         D1. |          0  (omitted)
             |
_Ivuosi_1995 |
         D1. |          0  (omitted)
             |
_Ivuosi_1996 |
         D1. |  -.0202595   .0078265    -2.59   0.010    -.0356093   -.0049096
             |
_Ivuosi_1997 |
         D1. |  -.0236828   .0105593    -2.24   0.025    -.0443923   -.0029733
             |
_Ivuosi_1998 |
         D1. |   .0167475   .0130428     1.28   0.199    -.0088327    .0423278
             |
_Ivuosi_1999 |
         D1. |          0  (omitted)
             |
  _Isector_2 |
         D1. |  -.0880422   .0072607   -12.13   0.000    -.1022823   -.0738021
             |
  _Isector_3 |
         D1. |          0  (omitted)
             |
  _Isector_4 |
         D1. |   .1132755   .2939222     0.39   0.700    -.4631821     .689733
             |
  _Isector_5 |
         D1. |  -.1781999   .0328325    -5.43   0.000    -.2425929   -.1138069
             |
  _Isector_6 |
         D1. |          0  (omitted)
             |
  _Isector_7 |
         D1. |          0  (omitted)
             |
  _Isector_8 |
         D1. |          0  (omitted)
             |
  _Isector_9 |
         D1. |  -.0280357   .2351736    -0.12   0.905    -.4892719    .4332006
             |
 _Isector_10 |
         D1. |   -.080544   .1595733    -0.50   0.614    -.3935086    .2324206
             |
 _Isector_11 |
         D1. |          0  (omitted)
             |
 _Isector_12 |
         D1. |  -.2232343   .1021902    -2.18   0.029    -.4236558   -.0228128
             |
 _Isector_13 |
         D1. |  -.0963088    .099284    -0.97   0.332    -.2910303    .0984128
             |
 _Isector_14 |
         D1. |   .0727456   .1399114     0.52   0.603    -.2016569    .3471481
             |
 _Isector_15 |
         D1. |   .0535613   .2932547     0.18   0.855    -.5215871    .6287098
             |
 _Isector_16 |
         D1. |  -.1744112   .1292434    -1.35   0.177    -.4278909    .0790685
             |
 _Isector_17 |
         D1. |  -.1079141   .1168093    -0.92   0.356    -.3370074    .1211792
             |
 _Isector_18 |
         D1. |  -.1504236   .0976578    -1.54   0.124    -.3419558    .0411086
             |
 _Isector_19 |
         D1. |  -.1845966   .1196047    -1.54   0.123    -.4191725    .0499793
             |
 _Isector_20 |
         D1. |  -.0782671   .1072268    -0.73   0.466    -.2885668    .1320325
             |
 _Isector_21 |
         D1. |  -.2643432   .1625094    -1.63   0.104    -.5830662    .0543798
             |
 _Isector_22 |
         D1. |   -.128212   .1006854    -1.27   0.203    -.3256821    .0692581
             |
 _Isector_23 |
         D1. |  -.1079036   .1392697    -0.77   0.439    -.3810475    .1652403
             |
 _Isector_24 |
         D1. |   .0661472   .2939328     0.23   0.822    -.5103312    .6426257
             |
 _Isector_25 |
         D1. |  -.0836802   .1156589    -0.72   0.469    -.3105173    .1431569
             |
 _Isector_26 |
         D1. |  -.1112799   .0991973    -1.12   0.262    -.3058315    .0832717
             |
 _Isector_27 |
         D1. |   .1903012    .346004     0.55   0.582    -.4883023    .8689047
             |
 _Isector_28 |
         D1. |          0  (omitted)
             |
 _Isector_29 |
         D1. |  -.1976888   .0979612    -2.02   0.044     -.389816   -.0055616
             |
 _Isector_30 |
         D1. |  -.1577717   .1193212    -1.32   0.186    -.3917915     .076248
             |
 _Isector_31 |
         D1. |          0  (omitted)
             |
 _Isector_32 |
         D1. |          0  (omitted)
             |
 _Isector_33 |
         D1. |          0  (omitted)
             |
 _Isector_34 |
         D1. |          0  (omitted)
             |
 _Isector_35 |
         D1. |  -.0638697   .1953359    -0.33   0.744     -.446974    .3192347
             |
 _Isector_36 |
         D1. |          0  (omitted)
             |
 _Isector_37 |
         D1. |          0  (omitted)
             |
 _Isector_38 |
         D1. |  -.0477332   .1062159    -0.45   0.653    -.2560502    .1605837
             |
 _Isector_39 |
         D1. |  -.3123657   .2350851    -1.33   0.184    -.7734284     .148697
             |
 _Isector_40 |
         D1. |  -.0869969   .1303176    -0.67   0.504    -.3425834    .1685896
             |
 _Isector_41 |
         D1. |  -.1741336   .1055521    -1.65   0.099    -.3811487    .0328815
             |
 _Isector_42 |
         D1. |  -.1685673   .0892178    -1.89   0.059    -.3435466     .006412
             |
 _Isector_43 |
         D1. |          0  (omitted)
             |
 _Isector_44 |
         D1. |   1.140845   .5851734     1.95   0.051    -.0068313    2.288522
             |
 _Isector_45 |
         D1. |          0  (omitted)
             |
 _Isector_46 |
         D1. |  -.0874503   .1219498    -0.72   0.473    -.3266254    .1517248
             |
   _Ieduc_32 |
         D1. |          0  (omitted)
             |
   _Ieduc_33 |
         D1. |          0  (omitted)
             |
   _Ieduc_35 |
         D1. |  -.2976304    .141812    -2.10   0.036    -.5757605   -.0195004
             |
   _Ieduc_36 |
         D1. |          0  (omitted)
             |
   _Ieduc_37 |
         D1. |          0  (omitted)
             |
   _Ieduc_38 |
         D1. |          0  (omitted)
             |
   _Ieduc_53 |
         D1. |          0  (omitted)
             |
   _Ieduc_54 |
         D1. |          0  (omitted)
             |
   _Ieduc_55 |
         D1. |    .076975   .1662862     0.46   0.643    -.2491553    .4031052
             |
   _Ieduc_56 |
         D1. |          0  (omitted)
             |
   _Ieduc_57 |
         D1. |          0  (omitted)
             |
   _Ieduc_63 |
         D1. |          0  (omitted)
             |
   _Ieduc_64 |
         D1. |          0  (omitted)
             |
   _Ieduc_65 |
         D1. |   .2421118   .1658734     1.46   0.145    -.0832089    .5674325
             |
   _Ieduc_66 |
         D1. |   .2969668   .1891883     1.57   0.117    -.0740806    .6680141
             |
   _Ieduc_72 |
         D1. |          0  (omitted)
             |
   _Ieduc_73 |
         D1. |          0  (omitted)
             |
   _Ieduc_74 |
         D1. |   .3260639   .1887397     1.73   0.084    -.0441035    .6962314
             |
   _Ieduc_75 |
         D1. |    .383136   .2142858     1.79   0.074    -.0371339    .8034059
             |
   _Ieduc_76 |
         D1. |          0  (omitted)
             |
   _Ieduc_77 |
         D1. |          0  (omitted)
             |
   _Ieduc_83 |
         D1. |          0  (omitted)
             |
   _Ieduc_84 |
         D1. |   .3751014   .2039763     1.84   0.066    -.0249488    .7751517
             |
   _Ieduc_85 |
         D1. |   .5440907   .2405874     2.26   0.024     .0722364    1.015945
             |
   _Ieduc_86 |
         D1. |          0  (omitted)
             |
   _Ieduc_87 |
         D1. |          0  (omitted)
             |
   _Ieduc_99 |
         D1. |   .0727231   .1434316     0.51   0.612    -.2085834    .3540295
             |
   _Inuts2_2 |
         D1. |  -.0071319   .0747688    -0.10   0.924    -.1537728    .1395091
             |
   _Inuts2_3 |
         D1. |   -.026597   .0504109    -0.53   0.598    -.1254659    .0722718
             |
   _Inuts2_4 |
         D1. |   .0261419   .0905565     0.29   0.773    -.1514629    .2037467
             |
   _Inuts2_5 |
         D1. |  -.1998078   .1089227    -1.83   0.067    -.4134335    .0138179
             |
   _Inuts2_6 |
         D1. |   .0796774   .0124469     6.40   0.000     .0552658    .1040891
             |
        pats |
         D1. |   .0218882   .0098556     2.22   0.026     .0025588    .0412176
             |
     lagcits |
         D1. |   .0000609   .0008793     0.07   0.945    -.0016636    .0017855
             |
     lagcit2 |
         D1. |   .0002066   .0010369     0.20   0.842     -.001827    .0022403
             |
     lagcit3 |
         D1. |   .0005243   .0010562     0.50   0.620    -.0015473    .0025958
             |
     lagcit4 |
         D1. |   .0009456   .0008599     1.10   0.272    -.0007409    .0026322
             |
       _cons |     .15469   .0283917     5.45   0.000     .0990065    .2103735
------------------------------------------------------------------------------

. xi: reg D.(logwage $expl_16), vce(cluster id);
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity

Linear regression                                      Number of obs =    4808
                                                       F( 47,  1740) =       .
                                                       Prob > F      =       .
                                                       R-squared     =  0.0288
                                                       Root MSE      =   .4261

                                  (Std. Err. adjusted for 1741 clusters in id)
------------------------------------------------------------------------------
             |               Robust
   D.logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |
         D1. |          0  (omitted)
             |
        age2 |
         D1. |  -.0016072   .0003888    -4.13   0.000    -.0023697   -.0008447
             |
      tenure |
         D1. |   .0030754   .0018535     1.66   0.097    -.0005599    .0067106
             |
      female |
         D1. |          0  (omitted)
             |
      months |
         D1. |   .0125249    .007072     1.77   0.077    -.0013455    .0263954
             |
         emp |
         D1. |   .0026722    .000703     3.80   0.000     .0012935     .004051
             |
_Ivuosi_1992 |
         D1. |          0  (omitted)
             |
_Ivuosi_1993 |
         D1. |          0  (omitted)
             |
_Ivuosi_1994 |
         D1. |          0  (omitted)
             |
_Ivuosi_1995 |
         D1. |          0  (omitted)
             |
_Ivuosi_1996 |
         D1. |          0  (omitted)
             |
_Ivuosi_1997 |
         D1. |  -.0126783   .0076082    -1.67   0.096    -.0276005    .0022439
             |
_Ivuosi_1998 |
         D1. |   .0200553   .0116839     1.72   0.086    -.0028607    .0429713
             |
_Ivuosi_1999 |
         D1. |          0  (omitted)
             |
  _Isector_2 |
         D1. |  -.0961317   .0078134   -12.30   0.000    -.1114562   -.0808071
             |
  _Isector_3 |
         D1. |          0  (omitted)
             |
  _Isector_4 |
         D1. |    .059486   .0160241     3.71   0.000     .0280575    .0909144
             |
  _Isector_5 |
         D1. |  -.1984834   .0414225    -4.79   0.000    -.2797266   -.1172403
             |
  _Isector_6 |
         D1. |          0  (omitted)
             |
  _Isector_7 |
         D1. |          0  (omitted)
             |
  _Isector_8 |
         D1. |          0  (omitted)
             |
  _Isector_9 |
         D1. |   .0110331   .2957058     0.04   0.970    -.5689431    .5910092
             |
 _Isector_10 |
         D1. |   -.090597   .2268553    -0.40   0.690    -.5355348    .3543408
             |
 _Isector_11 |
         D1. |          0  (omitted)
             |
 _Isector_12 |
         D1. |  -.1992226   .1203935    -1.65   0.098    -.4353537    .0369085
             |
 _Isector_13 |
         D1. |  -.0585084    .117857    -0.50   0.620    -.2896647     .172648
             |
 _Isector_14 |
         D1. |  -.0884952   .1161345    -0.76   0.446     -.316273    .1392826
             |
 _Isector_15 |
         D1. |          0  (omitted)
             |
 _Isector_16 |
         D1. |  -.2044871   .1278818    -1.60   0.110    -.4553052     .046331
             |
 _Isector_17 |
         D1. |  -.1169894   .1250307    -0.94   0.350    -.3622156    .1282368
             |
 _Isector_18 |
         D1. |  -.1173205   .1060793    -1.11   0.269    -.3253767    .0907358
             |
 _Isector_19 |
         D1. |  -.1677945   .1544311    -1.09   0.277    -.4706845    .1350955
             |
 _Isector_20 |
         D1. |  -.0558334   .1259561    -0.44   0.658    -.3028747     .191208
             |
 _Isector_21 |
         D1. |   -.255777   .1958112    -1.31   0.192    -.6398271    .1282732
             |
 _Isector_22 |
         D1. |   -.101017   .1161411    -0.87   0.385    -.3288079    .1267739
             |
 _Isector_23 |
         D1. |  -.0589993   .1843825    -0.32   0.749    -.4206339    .3026353
             |
 _Isector_24 |
         D1. |  -.1792487   .1341271    -1.34   0.182     -.442316    .0838187
             |
 _Isector_25 |
         D1. |  -.0527874   .1165388    -0.45   0.651    -.2813582    .1757834
             |
 _Isector_26 |
         D1. |  -.0758072   .1096901    -0.69   0.490    -.2909456    .1393312
             |
 _Isector_27 |
         D1. |   .4260039   .3559952     1.20   0.232    -.2722196    1.124227
             |
 _Isector_28 |
         D1. |          0  (omitted)
             |
 _Isector_29 |
         D1. |  -.1472833   .1043375    -1.41   0.158    -.3519234    .0573568
             |
 _Isector_30 |
         D1. |  -.1246344   .1660595    -0.75   0.453    -.4503316    .2010628
             |
 _Isector_31 |
         D1. |          0  (omitted)
             |
 _Isector_32 |
         D1. |          0  (omitted)
             |
 _Isector_33 |
         D1. |          0  (omitted)
             |
 _Isector_34 |
         D1. |          0  (omitted)
             |
 _Isector_35 |
         D1. |  -.1808889    .168792    -1.07   0.284    -.5119454    .1501675
             |
 _Isector_36 |
         D1. |          0  (omitted)
             |
 _Isector_37 |
         D1. |          0  (omitted)
             |
 _Isector_38 |
         D1. |   .0034252   .1171991     0.03   0.977    -.2264406    .2332911
             |
 _Isector_39 |
         D1. |  -.2668157   .2338265    -1.14   0.254    -.7254263    .1917949
             |
 _Isector_40 |
         D1. |  -.1796718   .1287141    -1.40   0.163    -.4321225    .0727789
             |
 _Isector_41 |
         D1. |  -.1288692   .1210377    -1.06   0.287    -.3662638    .1085254
             |
 _Isector_42 |
         D1. |  -.1099108   .1016433    -1.08   0.280    -.3092667    .0894451
             |
 _Isector_43 |
         D1. |          0  (omitted)
             |
 _Isector_44 |
         D1. |   1.196059   .5819673     2.06   0.040     .0546305    2.337488
             |
 _Isector_45 |
         D1. |          0  (omitted)
             |
 _Isector_46 |
         D1. |  -.0564073   .1248696    -0.45   0.652    -.3013177    .1885031
             |
   _Ieduc_32 |
         D1. |          0  (omitted)
             |
   _Ieduc_33 |
         D1. |          0  (omitted)
             |
   _Ieduc_35 |
         D1. |   -.260826   .1539135    -1.69   0.090    -.5627008    .0410489
             |
   _Ieduc_36 |
         D1. |          0  (omitted)
             |
   _Ieduc_37 |
         D1. |          0  (omitted)
             |
   _Ieduc_38 |
         D1. |          0  (omitted)
             |
   _Ieduc_53 |
         D1. |          0  (omitted)
             |
   _Ieduc_54 |
         D1. |          0  (omitted)
             |
   _Ieduc_55 |
         D1. |   .1226575   .1892129     0.65   0.517    -.2484511     .493766
             |
   _Ieduc_56 |
         D1. |          0  (omitted)
             |
   _Ieduc_57 |
         D1. |          0  (omitted)
             |
   _Ieduc_63 |
         D1. |          0  (omitted)
             |
   _Ieduc_64 |
         D1. |          0  (omitted)
             |
   _Ieduc_65 |
         D1. |   .3456768   .2032259     1.70   0.089    -.0529159    .7442696
             |
   _Ieduc_66 |
         D1. |   .3471829   .2028659     1.71   0.087    -.0507037    .7450695
             |
   _Ieduc_72 |
         D1. |          0  (omitted)
             |
   _Ieduc_73 |
         D1. |          0  (omitted)
             |
   _Ieduc_74 |
         D1. |   .3960553   .2027583     1.95   0.051    -.0016203    .7937309
             |
   _Ieduc_75 |
         D1. |   .5926091   .1803903     3.29   0.001     .2388045    .9464137
             |
   _Ieduc_76 |
         D1. |          0  (omitted)
             |
   _Ieduc_77 |
         D1. |          0  (omitted)
             |
   _Ieduc_83 |
         D1. |          0  (omitted)
             |
   _Ieduc_84 |
         D1. |    .474315   .2046714     2.32   0.021     .0728873    .8757427
             |
   _Ieduc_85 |
         D1. |   .6840344   .1964701     3.48   0.001     .2986921    1.069377
             |
   _Ieduc_86 |
         D1. |          0  (omitted)
             |
   _Ieduc_87 |
         D1. |          0  (omitted)
             |
   _Ieduc_99 |
         D1. |   .1136279   .1556823     0.73   0.466    -.1917162    .4189721
             |
   _Inuts2_2 |
         D1. |  -.0713188   .0891937    -0.80   0.424    -.2462568    .1036193
             |
   _Inuts2_3 |
         D1. |  -.0321781   .0512851    -0.63   0.530    -.1327651    .0684089
             |
   _Inuts2_4 |
         D1. |  -.0492976   .0637922    -0.77   0.440    -.1744151    .0758199
             |
   _Inuts2_5 |
         D1. |  -.1870319   .1394475    -1.34   0.180    -.4605342    .0864705
             |
   _Inuts2_6 |
         D1. |          0  (omitted)
             |
        pats |
         D1. |   .0261677   .0116729     2.24   0.025     .0032733    .0490621
             |
     lagcits |
         D1. |   .0002187   .0011869     0.18   0.854    -.0021093    .0025466
             |
     lagcit2 |
         D1. |   .0001737   .0014213     0.12   0.903     -.002614    .0029615
             |
     lagcit3 |
         D1. |    .001258   .0014687     0.86   0.392    -.0016225    .0041385
             |
     lagcit4 |
         D1. |   .0015833   .0014586     1.09   0.278    -.0012774    .0044441
             |
     lagcit5 |
         D1. |   .0002618   .0015923     0.16   0.869    -.0028611    .0033848
             |
       _cons |   .1887151   .0367841     5.13   0.000     .1165694    .2608608
------------------------------------------------------------------------------

. xi: reg D.(logwage $expl_17), vce(cluster id);
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity

Linear regression                                      Number of obs =    3126
                                                       F( 43,  1638) =       .
                                                       Prob > F      =       .
                                                       R-squared     =  0.0358
                                                       Root MSE      =  .48895

                                  (Std. Err. adjusted for 1639 clusters in id)
------------------------------------------------------------------------------
             |               Robust
   D.logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |
         D1. |          0  (omitted)
             |
        age2 |
         D1. |  -.0013947   .0005768    -2.42   0.016    -.0025262   -.0002633
             |
      tenure |
         D1. |   .0063688   .0020537     3.10   0.002     .0023406    .0103969
             |
      female |
         D1. |          0  (omitted)
             |
      months |
         D1. |   .0026856   .0052301     0.51   0.608    -.0075727     .012944
             |
         emp |
         D1. |   .0034511   .0009543     3.62   0.000     .0015792    .0053229
             |
_Ivuosi_1992 |
         D1. |          0  (omitted)
             |
_Ivuosi_1993 |
         D1. |          0  (omitted)
             |
_Ivuosi_1994 |
         D1. |          0  (omitted)
             |
_Ivuosi_1995 |
         D1. |          0  (omitted)
             |
_Ivuosi_1996 |
         D1. |          0  (omitted)
             |
_Ivuosi_1997 |
         D1. |          0  (omitted)
             |
_Ivuosi_1998 |
         D1. |   .0269583   .0095346     2.83   0.005      .008257    .0456595
             |
_Ivuosi_1999 |
         D1. |          0  (omitted)
             |
  _Isector_2 |
         D1. |          0  (omitted)
             |
  _Isector_3 |
         D1. |          0  (omitted)
             |
  _Isector_4 |
         D1. |   .0606114   .0189554     3.20   0.001      .023432    .0977908
             |
  _Isector_5 |
         D1. |  -.4295048    .199771    -2.15   0.032    -.8213383   -.0376713
             |
  _Isector_6 |
         D1. |          0  (omitted)
             |
  _Isector_7 |
         D1. |          0  (omitted)
             |
  _Isector_8 |
         D1. |          0  (omitted)
             |
  _Isector_9 |
         D1. |   .1924227    .254496     0.76   0.450    -.3067491    .6915945
             |
 _Isector_10 |
         D1. |  -.4556331   .1857124    -2.45   0.014    -.8198918   -.0913743
             |
 _Isector_11 |
         D1. |          0  (omitted)
             |
 _Isector_12 |
         D1. |  -.2683943   .1065482    -2.52   0.012    -.4773793   -.0594093
             |
 _Isector_13 |
         D1. |  -.0782352   .0824654    -0.95   0.343     -.239984    .0835136
             |
 _Isector_14 |
         D1. |   -.260794   .1167487    -2.23   0.026    -.4897865   -.0318015
             |
 _Isector_15 |
         D1. |          0  (omitted)
             |
 _Isector_16 |
         D1. |   -.302971   .1243079    -2.44   0.015    -.5467902   -.0591519
             |
 _Isector_17 |
         D1. |  -.1388984   .1781882    -0.78   0.436    -.4883992    .2106023
             |
 _Isector_18 |
         D1. |  -.2208057   .1069498    -2.06   0.039    -.4305786   -.0110329
             |
 _Isector_19 |
         D1. |  -.2807999   .2233457    -1.26   0.209    -.7188732    .1572734
             |
 _Isector_20 |
         D1. |  -.1156975    .126192    -0.92   0.359    -.3632122    .1318172
             |
 _Isector_21 |
         D1. |  -.4233125   .2433607    -1.74   0.082    -.9006433    .0540183
             |
 _Isector_22 |
         D1. |  -.1367962   .1056354    -1.29   0.196    -.3439909    .0703984
             |
 _Isector_23 |
         D1. |          0  (omitted)
             |
 _Isector_24 |
         D1. |  -.2807286   .1537814    -1.83   0.068    -.5823575    .0209003
             |
 _Isector_25 |
         D1. |  -.0448707   .0874481    -0.51   0.608    -.2163926    .1266511
             |
 _Isector_26 |
         D1. |  -.1426155    .109135    -1.31   0.191    -.3566743    .0714433
             |
 _Isector_27 |
         D1. |   .0570135   .1902206     0.30   0.764    -.3160877    .4301147
             |
 _Isector_28 |
         D1. |          0  (omitted)
             |
 _Isector_29 |
         D1. |  -.2536548   .1100573    -2.30   0.021    -.4695227   -.0377869
             |
 _Isector_30 |
         D1. |  -.0449796   .1125825    -0.40   0.690    -.2658005    .1758413
             |
 _Isector_31 |
         D1. |          0  (omitted)
             |
 _Isector_32 |
         D1. |          0  (omitted)
             |
 _Isector_33 |
         D1. |          0  (omitted)
             |
 _Isector_34 |
         D1. |          0  (omitted)
             |
 _Isector_35 |
         D1. |   -.303097    .215864    -1.40   0.160    -.7264954    .1203014
             |
 _Isector_36 |
         D1. |          0  (omitted)
             |
 _Isector_37 |
         D1. |          0  (omitted)
             |
 _Isector_38 |
         D1. |  -.0151206   .1347004    -0.11   0.911    -.2793238    .2490825
             |
 _Isector_39 |
         D1. |  -.2490893   .2008609    -1.24   0.215    -.6430605     .144882
             |
 _Isector_40 |
         D1. |  -.2561551   .1409432    -1.82   0.069    -.5326029    .0202927
             |
 _Isector_41 |
         D1. |  -.1532391   .0969894    -1.58   0.114    -.3434754    .0369972
             |
 _Isector_42 |
         D1. |  -.1418882   .1067391    -1.33   0.184    -.3512477    .0674713
             |
 _Isector_43 |
         D1. |          0  (omitted)
             |
 _Isector_44 |
         D1. |   1.388205   .7256618     1.91   0.056    -.0351178    2.811528
             |
 _Isector_45 |
         D1. |          0  (omitted)
             |
 _Isector_46 |
         D1. |          0  (omitted)
             |
   _Ieduc_32 |
         D1. |          0  (omitted)
             |
   _Ieduc_33 |
         D1. |          0  (omitted)
             |
   _Ieduc_35 |
         D1. |  -.3104667   .1861256    -1.67   0.095    -.6755359    .0546025
             |
   _Ieduc_36 |
         D1. |          0  (omitted)
             |
   _Ieduc_37 |
         D1. |          0  (omitted)
             |
   _Ieduc_38 |
         D1. |          0  (omitted)
             |
   _Ieduc_53 |
         D1. |          0  (omitted)
             |
   _Ieduc_54 |
         D1. |          0  (omitted)
             |
   _Ieduc_55 |
         D1. |   .3867819   .3779331     1.02   0.306    -.3545011    1.128065
             |
   _Ieduc_56 |
         D1. |          0  (omitted)
             |
   _Ieduc_57 |
         D1. |          0  (omitted)
             |
   _Ieduc_63 |
         D1. |          0  (omitted)
             |
   _Ieduc_64 |
         D1. |          0  (omitted)
             |
   _Ieduc_65 |
         D1. |   .6873669   .2958956     2.32   0.020     .1069934     1.26774
             |
   _Ieduc_66 |
         D1. |          0  (omitted)
             |
   _Ieduc_72 |
         D1. |          0  (omitted)
             |
   _Ieduc_73 |
         D1. |          0  (omitted)
             |
   _Ieduc_74 |
         D1. |   .7459955   .2932244     2.54   0.011     .1708612     1.32113
             |
   _Ieduc_75 |
         D1. |   .8621411   .2396026     3.60   0.000     .3921814    1.332101
             |
   _Ieduc_76 |
         D1. |          0  (omitted)
             |
   _Ieduc_77 |
         D1. |          0  (omitted)
             |
   _Ieduc_83 |
         D1. |          0  (omitted)
             |
   _Ieduc_84 |
         D1. |   .8289528   .2940299     2.82   0.005     .2522386    1.405667
             |
   _Ieduc_85 |
         D1. |   .9553122   .2621553     3.64   0.000     .4411172    1.469507
             |
   _Ieduc_86 |
         D1. |          0  (omitted)
             |
   _Ieduc_87 |
         D1. |          0  (omitted)
             |
   _Ieduc_99 |
         D1. |   .0532239     .18839     0.28   0.778    -.3162868    .4227346
             |
   _Inuts2_2 |
         D1. |  -.1032269   .1150508    -0.90   0.370     -.328889    .1224353
             |
   _Inuts2_3 |
         D1. |  -.0676083   .0849364    -0.80   0.426    -.2342036     .098987
             |
   _Inuts2_4 |
         D1. |  -.0381391   .0997228    -0.38   0.702    -.2337366    .1574585
             |
   _Inuts2_5 |
         D1. |  -.0507251   .0564991    -0.90   0.369    -.1615432     .060093
             |
   _Inuts2_6 |
         D1. |          0  (omitted)
             |
        pats |
         D1. |   .0274699    .014396     1.91   0.057    -.0007667    .0557065
             |
     lagcits |
         D1. |   .0001578   .0016951     0.09   0.926    -.0031669    .0034825
             |
     lagcit2 |
         D1. |   .0003961   .0021592     0.18   0.854    -.0038389    .0046312
             |
     lagcit3 |
         D1. |   .0024118   .0020956     1.15   0.250    -.0016985     .006522
             |
     lagcit4 |
         D1. |   .0029452   .0020577     1.43   0.153    -.0010908    .0069811
             |
     lagcit5 |
         D1. |   .0034053   .0019122     1.78   0.075    -.0003452    .0071559
             |
     lagcit6 |
         D1. |   .0042913   .0025838     1.66   0.097    -.0007766    .0093592
             |
       _cons |   .1691457   .0564675     3.00   0.003     .0583896    .2799018
------------------------------------------------------------------------------

.  /* TABLE 4 */
> xi: reg D.(logwage $expl_18), vce(cluster id);
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity
note: _delete omitted because of collinearity

Linear regression                                      Number of obs =    1515
                                                       F( 36,  1514) =       .
                                                       Prob > F      =       .
                                                       R-squared     =  0.0504
                                                       Root MSE      =  .55617

                                  (Std. Err. adjusted for 1515 clusters in id)
------------------------------------------------------------------------------
             |               Robust
   D.logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |
         D1. |          0  (omitted)
             |
        age2 |
         D1. |   -.001338   .0009293    -1.44   0.150    -.0031609    .0004849
             |
      tenure |
         D1. |   .0053276   .0036008     1.48   0.139    -.0017354    .0123906
             |
      female |
         D1. |          0  (omitted)
             |
      months |
         D1. |  -.0037991   .0057448    -0.66   0.509    -.0150676    .0074694
             |
         emp |
         D1. |   .0064346   .0018864     3.41   0.001     .0027344    .0101348
             |
_Ivuosi_1992 |
         D1. |          0  (omitted)
             |
_Ivuosi_1993 |
         D1. |          0  (omitted)
             |
_Ivuosi_1994 |
         D1. |          0  (omitted)
             |
_Ivuosi_1995 |
         D1. |          0  (omitted)
             |
_Ivuosi_1996 |
         D1. |          0  (omitted)
             |
_Ivuosi_1997 |
         D1. |          0  (omitted)
             |
_Ivuosi_1998 |
         D1. |          0  (omitted)
             |
_Ivuosi_1999 |
         D1. |          0  (omitted)
             |
  _Isector_2 |
         D1. |          0  (omitted)
             |
  _Isector_3 |
         D1. |          0  (omitted)
             |
  _Isector_4 |
         D1. |          0  (omitted)
             |
  _Isector_5 |
         D1. |   -.058058   .0746195    -0.78   0.437    -.2044265    .0883105
             |
  _Isector_6 |
         D1. |          0  (omitted)
             |
  _Isector_7 |
         D1. |          0  (omitted)
             |
  _Isector_8 |
         D1. |          0  (omitted)
             |
  _Isector_9 |
         D1. |   .4581628   .3032305     1.51   0.131    -.1366335    1.052959
             |
 _Isector_10 |
         D1. |  -.4131051   .2613767    -1.58   0.114    -.9258039    .0995937
             |
 _Isector_11 |
         D1. |          0  (omitted)
             |
 _Isector_12 |
         D1. |  -.2255802   .0622503    -3.62   0.000    -.3476862   -.1034742
             |
 _Isector_13 |
         D1. |   .0262826   .0914291     0.29   0.774    -.1530585    .2056237
             |
 _Isector_14 |
         D1. |          0  (omitted)
             |
 _Isector_15 |
         D1. |          0  (omitted)
             |
 _Isector_16 |
         D1. |  -.1726879   .1315195    -1.31   0.189    -.4306676    .0852917
             |
 _Isector_17 |
         D1. |  -.0149941    .253897    -0.06   0.953    -.5130213    .4830331
             |
 _Isector_18 |
         D1. |  -.1260082    .118633    -1.06   0.288    -.3587107    .1066943
             |
 _Isector_19 |
         D1. |  -.3789215   .3206993    -1.18   0.238    -1.007983    .2501404
             |
 _Isector_20 |
         D1. |    .025715   .1165859     0.22   0.825     -.202972    .2544021
             |
 _Isector_21 |
         D1. |  -.8425323   .3255395    -2.59   0.010    -1.481088    -.203976
             |
 _Isector_22 |
         D1. |  -.1135319   .1564561    -0.73   0.468    -.4204256    .1933617
             |
 _Isector_23 |
         D1. |          0  (omitted)
             |
 _Isector_24 |
         D1. |   .1453388   .1498043     0.97   0.332    -.1485071    .4391847
             |
 _Isector_25 |
         D1. |   .0985053   .0987564     1.00   0.319    -.0952086    .2922191
             |
 _Isector_26 |
         D1. |  -.0313872   .0566249    -0.55   0.579    -.1424587    .0796843
             |
 _Isector_27 |
         D1. |   .1528414   .1966385     0.78   0.437    -.2328713    .5385541
             |
 _Isector_28 |
         D1. |          0  (omitted)
             |
 _Isector_29 |
         D1. |  -.1473153   .1075722    -1.37   0.171    -.3583218    .0636911
             |
 _Isector_30 |
         D1. |          0  (omitted)
             |
 _Isector_31 |
         D1. |          0  (omitted)
             |
 _Isector_32 |
         D1. |          0  (omitted)
             |
 _Isector_33 |
         D1. |          0  (omitted)
             |
 _Isector_34 |
         D1. |          0  (omitted)
             |
 _Isector_35 |
         D1. |  -.3788181   .2768724    -1.37   0.171    -.9219121     .164276
             |
 _Isector_36 |
         D1. |          0  (omitted)
             |
 _Isector_37 |
         D1. |          0  (omitted)
             |
 _Isector_38 |
         D1. |   .2181419    .119753     1.82   0.069    -.0167575    .4530412
             |
 _Isector_39 |
         D1. |   .0456682   .1243942     0.37   0.714    -.1983351    .2896715
             |
 _Isector_40 |
         D1. |  -.2270708   .2298392    -0.99   0.323    -.6779078    .2237661
             |
 _Isector_41 |
         D1. |  -.0623396   .1163602    -0.54   0.592    -.2905839    .1659047
             |
 _Isector_42 |
         D1. |   .0789224   .0623954     1.26   0.206    -.0434683     .201313
             |
 _Isector_43 |
         D1. |          0  (omitted)
             |
 _Isector_44 |
         D1. |          0  (omitted)
             |
 _Isector_45 |
         D1. |          0  (omitted)
             |
 _Isector_46 |
         D1. |          0  (omitted)
             |
   _Ieduc_32 |
         D1. |          0  (omitted)
             |
   _Ieduc_33 |
         D1. |          0  (omitted)
             |
   _Ieduc_35 |
         D1. |   -.365457   .0374793    -9.75   0.000    -.4389738   -.2919403
             |
   _Ieduc_36 |
         D1. |          0  (omitted)
             |
   _Ieduc_37 |
         D1. |          0  (omitted)
             |
   _Ieduc_38 |
         D1. |          0  (omitted)
             |
   _Ieduc_53 |
         D1. |          0  (omitted)
             |
   _Ieduc_54 |
         D1. |          0  (omitted)
             |
   _Ieduc_55 |
         D1. |  -.3361732   .4872867    -0.69   0.490    -1.292002    .6196552
             |
   _Ieduc_56 |
         D1. |          0  (omitted)
             |
   _Ieduc_57 |
         D1. |          0  (omitted)
             |
   _Ieduc_63 |
         D1. |          0  (omitted)
             |
   _Ieduc_64 |
         D1. |          0  (omitted)
             |
   _Ieduc_65 |
         D1. |    .051201   .3822603     0.13   0.893    -.6986147    .8010168
             |
   _Ieduc_66 |
         D1. |          0  (omitted)
             |
   _Ieduc_72 |
         D1. |          0  (omitted)
             |
   _Ieduc_73 |
         D1. |          0  (omitted)
             |
   _Ieduc_74 |
         D1. |  -.0960477   .0471125    -2.04   0.042    -.1884604   -.0036351
             |
   _Ieduc_75 |
         D1. |   .3473271   .3129512     1.11   0.267    -.2665367     .961191
             |
   _Ieduc_76 |
         D1. |          0  (omitted)
             |
   _Ieduc_77 |
         D1. |          0  (omitted)
             |
   _Ieduc_83 |
         D1. |          0  (omitted)
             |
   _Ieduc_84 |
         D1. |          0  (omitted)
             |
   _Ieduc_85 |
         D1. |   .4277045   .3402119     1.26   0.209     -.239632    1.095041
             |
   _Ieduc_86 |
         D1. |          0  (omitted)
             |
   _Ieduc_87 |
         D1. |          0  (omitted)
             |
   _Ieduc_99 |
         D1. |          0  (omitted)
             |
   _Inuts2_2 |
         D1. |   .0410687   .1044891     0.39   0.694    -.1638899    .2460274
             |
   _Inuts2_3 |
         D1. |  -.0251584   .0802294    -0.31   0.754    -.1825309    .1322142
             |
   _Inuts2_4 |
         D1. |   .0764929   .1196701     0.64   0.523    -.1582439    .3112296
             |
   _Inuts2_5 |
         D1. |  -.0868144   .0431736    -2.01   0.045    -.1715007    -.002128
             |
   _Inuts2_6 |
         D1. |          0  (omitted)
             |
        pats |
         D1. |   .0273026   .0232465     1.17   0.240    -.0182962    .0729014
             |
     lagcits |
         D1. |  -.0004337   .0021569    -0.20   0.841    -.0046645     .003797
             |
     lagcit2 |
         D1. |  -.0000181    .003159    -0.01   0.995    -.0062145    .0061783
             |
     lagcit3 |
         D1. |   .0045512   .0034105     1.33   0.182    -.0021385     .011241
             |
     lagcit4 |
         D1. |   .0055037     .00298     1.85   0.065    -.0003417    .0113491
             |
     lagcit5 |
         D1. |   .0057486   .0034341     1.67   0.094    -.0009875    .0124847
             |
     lagcit6 |
         D1. |   .0071392   .0038413     1.86   0.063    -.0003957    .0146741
             |
     lagcit7 |
         D1. |   .0035352   .0033527     1.05   0.292    -.0030412    .0101115
             |
       _cons |   .1414967   .0898472     1.57   0.115    -.0347416    .3177349
------------------------------------------------------------------------------

. *citations as a categorical variable;
. xi: xtreg logwage $expl_0 $expl_cg, fe robust  ;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: female omitted because of collinearity
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Ivuosi_1996 omitted because of collinearity
note: _Ivuosi_1997 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_2 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_7 omitted because of collinearity
note: _Isector_8 omitted because of collinearity
note: _Isector_11 omitted because of collinearity
note: _Isector_15 omitted because of collinearity
note: _Isector_23 omitted because of collinearity
note: _Isector_28 omitted because of collinearity
note: _Isector_32 omitted because of collinearity
note: _Isector_33 omitted because of collinearity
note: _Isector_34 omitted because of collinearity
note: _Isector_36 omitted because of collinearity
note: _Isector_37 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Isector_45 omitted because of collinearity
note: _Isector_46 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_64 omitted because of collinearity
note: _Ieduc_66 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_73 omitted because of collinearity
note: _Ieduc_76 omitted because of collinearity
note: _Ieduc_77 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity
note: _Ieduc_86 omitted because of collinearity
note: _Ieduc_87 omitted because of collinearity
note: _Inuts2_6 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =      4938
Group variable: id                              Number of groups   =      1789

R-sq:  within  = 0.0870                         Obs per group: min =         1
       between = 0.0592                                        avg =       2.8
       overall = 0.0564                                        max =         3

                                                F(72,1788)         =         .
corr(u_i, Xb)  = -0.6613                        Prob > F           =         .

                                  (Std. Err. adjusted for 1789 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |    .192071    .047797     4.02   0.000     .0983271    .2858149
        age2 |  -.0015123   .0004918    -3.07   0.002     -.002477   -.0005477
      tenure |   .0078641   .0021975     3.58   0.000     .0035541    .0121741
      female |          0  (omitted)
      months |   .0056043   .0045383     1.23   0.217    -.0032967    .0145052
         emp |   .0042612   .0009989     4.27   0.000     .0023022    .0062203
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |          0  (omitted)
_Ivuosi_1995 |          0  (omitted)
_Ivuosi_1996 |          0  (omitted)
_Ivuosi_1997 |          0  (omitted)
_Ivuosi_1998 |   .0249483   .0103315     2.41   0.016     .0046852    .0452114
_Ivuosi_1999 |          0  (omitted)
  _Isector_2 |          0  (omitted)
  _Isector_3 |          0  (omitted)
  _Isector_4 |   .0380314   .0470976     0.81   0.419    -.0543407    .1304034
  _Isector_5 |  -.3193349   .2080453    -1.53   0.125    -.7273724    .0887026
  _Isector_6 |          0  (omitted)
  _Isector_7 |          0  (omitted)
  _Isector_8 |          0  (omitted)
  _Isector_9 |   .1382311   .2865671     0.48   0.630    -.4238106    .7002728
 _Isector_10 |  -.4258441   .2385704    -1.78   0.074    -.8937501     .042062
 _Isector_11 |          0  (omitted)
 _Isector_12 |  -.1559511    .152516    -1.02   0.307    -.4550794    .1431772
 _Isector_13 |   .0356415   .1331891     0.27   0.789    -.2255813    .2968642
 _Isector_14 |  -.1176207   .1591432    -0.74   0.460     -.429747    .1945057
 _Isector_15 |          0  (omitted)
 _Isector_16 |  -.2411515   .1667941    -1.45   0.148    -.5682834    .0859804
 _Isector_17 |  -.0229351   .2328644    -0.10   0.922      -.47965    .4337798
 _Isector_18 |  -.0758594   .1463761    -0.52   0.604    -.3629457    .2112269
 _Isector_19 |  -.0682486   .2209924    -0.31   0.757    -.5016791    .3651819
 _Isector_20 |   .0536151   .1562845     0.34   0.732    -.2529043    .3601345
 _Isector_21 |  -.3396618   .2505557    -1.36   0.175    -.8310747     .151751
 _Isector_22 |  -.0166208   .1459399    -0.11   0.909    -.3028514    .2696098
 _Isector_23 |          0  (omitted)
 _Isector_24 |  -.2173979   .1786056    -1.22   0.224    -.5676955    .1328997
 _Isector_25 |   .0067542   .1442204     0.05   0.963    -.2761041    .2896124
 _Isector_26 |   .0320148   .1486161     0.22   0.829    -.2594647    .3234944
 _Isector_27 |   .0514546   .1832752     0.28   0.779    -.3080016    .4109108
 _Isector_28 |          0  (omitted)
 _Isector_29 |  -.1197729   .1469419    -0.82   0.415    -.4079688     .168423
 _Isector_30 |    .056451   .1549659     0.36   0.716    -.2474824    .3603844
 _Isector_31 |   .4658908   .1545943     3.01   0.003     .1626863    .7690954
 _Isector_32 |          0  (omitted)
 _Isector_33 |          0  (omitted)
 _Isector_34 |          0  (omitted)
 _Isector_35 |   -.112862   .2428612    -0.46   0.642    -.5891836    .3634597
 _Isector_36 |          0  (omitted)
 _Isector_37 |          0  (omitted)
 _Isector_38 |   .1370506   .1798134     0.76   0.446    -.2156159    .4897171
 _Isector_39 |   .0458665   .1456087     0.31   0.753    -.2397146    .3314477
 _Isector_40 |  -.0464274    .245537    -0.19   0.850     -.527997    .4351423
 _Isector_41 |  -.0204558   .1391155    -0.15   0.883    -.2933018    .2523902
 _Isector_42 |  -.0212709   .1473302    -0.14   0.885    -.3102283    .2676866
 _Isector_43 |          0  (omitted)
 _Isector_44 |   1.989693    .789583     2.52   0.012     .4410901    3.538295
 _Isector_45 |          0  (omitted)
 _Isector_46 |          0  (omitted)
   _Ieduc_32 |          0  (omitted)
   _Ieduc_33 |          0  (omitted)
   _Ieduc_35 |   .0694495   .0671612     1.03   0.301    -.0622732    .2011723
   _Ieduc_36 |          0  (omitted)
   _Ieduc_37 |          0  (omitted)
   _Ieduc_38 |          0  (omitted)
   _Ieduc_53 |          0  (omitted)
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |   .8101941    .367209     2.21   0.027     .0899901    1.530398
   _Ieduc_56 |          0  (omitted)
   _Ieduc_57 |          0  (omitted)
   _Ieduc_63 |          0  (omitted)
   _Ieduc_64 |          0  (omitted)
   _Ieduc_65 |   .9168273   .3242703     2.83   0.005     .2808387    1.552816
   _Ieduc_66 |          0  (omitted)
   _Ieduc_72 |          0  (omitted)
   _Ieduc_73 |          0  (omitted)
   _Ieduc_74 |   .9987726   .3217241     3.10   0.002     .3677778    1.629767
   _Ieduc_75 |   1.010894   .2728128     3.71   0.000     .4758286    1.545959
   _Ieduc_76 |          0  (omitted)
   _Ieduc_77 |          0  (omitted)
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |   1.004954   .3331832     3.02   0.003     .3514842    1.658423
   _Ieduc_85 |   1.051869   .2955625     3.56   0.000     .4721851    1.631554
   _Ieduc_86 |          0  (omitted)
   _Ieduc_87 |          0  (omitted)
   _Ieduc_99 |   .2950342   .1332087     2.21   0.027      .033773    .5562953
   _Inuts2_2 |  -.2717358    .193205    -1.41   0.160    -.6506672    .1071955
   _Inuts2_3 |   -.011199   .1423327    -0.08   0.937     -.290355     .267957
   _Inuts2_4 |  -.1474434   .1567706    -0.94   0.347    -.4549163    .1600295
   _Inuts2_5 |  -.0598928   .1298082    -0.46   0.645    -.3144846     .194699
   _Inuts2_6 |          0  (omitted)
      nocits |  -.0189246   .0330442    -0.57   0.567     -.083734    .0458848
      cits10 |  -.0371052   .0257087    -1.44   0.149    -.0875275     .013317
      cits20 |   .0160027   .0515067     0.31   0.756     -.085017    .1170223
      cits30 |  -.0150451   .0892152    -0.17   0.866    -.1900221    .1599319
     topcits |   .1270938   .0959055     1.33   0.185     -.061005    .3151925
      lagnoc |  -.0539476   .0448175    -1.20   0.229    -.1418477    .0339526
      lag10c |  -.0274365   .0332883    -0.82   0.410    -.0927246    .0378516
      lag20c |  -.0149929    .056237    -0.27   0.790    -.1252901    .0953043
      lag30c |  -.0361576   .1362959    -0.27   0.791    -.3034737    .2311584
     lagtopc |   .0069588    .096624     0.07   0.943     -.182549    .1964667
     lagnoc2 |   -.125174   .0644719    -1.94   0.052    -.2516223    .0012742
     lag10c2 |  -.0439915   .0386985    -1.14   0.256    -.1198905    .0319074
     lag20c2 |  -.0499744   .0533229    -0.94   0.349    -.1545562    .0546073
     lag30c2 |  -.0945894   .1290011    -0.73   0.464    -.3475981    .1584194
    lagtopc2 |   .0815637   .1363586     0.60   0.550    -.1858752    .3490026
     lagnoc3 |  -.0748969      .0539    -1.39   0.165    -.1806105    .0308167
     lag10c3 |  -.0219878   .0293921    -0.75   0.455    -.0796344    .0356588
     lag20c3 |   .0094765   .0628037     0.15   0.880    -.1136998    .1326529
     lag30c3 |   .0166658   .1347552     0.12   0.902    -.2476285      .28096
     lagtop3 |   .2209335   .1241837     1.78   0.075    -.0226269    .4644939
     lagnoc4 |  -.1005364   .0560257    -1.79   0.073     -.210419    .0093463
     lag10c4 |  -.0149075   .0311337    -0.48   0.632    -.0759697    .0461547
     lag20c4 |  -.0316561   .0587321    -0.54   0.590    -.1468469    .0835346
     lag30c4 |   .0917359   .1238917     0.74   0.459    -.1512519    .3347236
    lagtopc4 |    .319576   .1193012     2.68   0.007     .0855916    .5535605
     lagnoc5 |  -.0735785    .054744    -1.34   0.179    -.1809474    .0337904
     lag10c5 |   .0376209   .0281819     1.33   0.182    -.0176521    .0928939
     lag20c5 |   .0415988   .0565875     0.74   0.462    -.0693859    .1525834
     lag30c5 |   .1200151   .1283131     0.94   0.350    -.1316443    .3716744
    lagtopc5 |   .3395594   .1162335     2.92   0.004     .1115917    .5675271
     lagnoc6 |  -.0736268   .0532229    -1.38   0.167    -.1780124    .0307587
     lag10c6 |   .0196802   .0226183     0.87   0.384    -.0246808    .0640413
     lag20c6 |   .0044585    .029105     0.15   0.878    -.0526249    .0615419
     lag30c6 |    .162517   .0775025     2.10   0.036     .0105121     .314522
    lagtopc6 |   .3774178   .1605832     2.35   0.019     .0624673    .6923682
       _cons |   4.383545   1.194981     3.67   0.000     2.039839    6.727251
-------------+----------------------------------------------------------------
     sigma_u |  .68562189
     sigma_e |  .37863128
         rho |  .76629845   (fraction of variance due to u_i)
------------------------------------------------------------------------------

.  /* TABLE 5 */
> 
> *include tenure-squared;
. xi: xtreg logwage $expl_7 tenure2, fe robust  ;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: female omitted because of collinearity
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Ivuosi_1996 omitted because of collinearity
note: _Ivuosi_1997 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_2 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_7 omitted because of collinearity
note: _Isector_8 omitted because of collinearity
note: _Isector_11 omitted because of collinearity
note: _Isector_15 omitted because of collinearity
note: _Isector_23 omitted because of collinearity
note: _Isector_28 omitted because of collinearity
note: _Isector_32 omitted because of collinearity
note: _Isector_33 omitted because of collinearity
note: _Isector_34 omitted because of collinearity
note: _Isector_36 omitted because of collinearity
note: _Isector_37 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Isector_45 omitted because of collinearity
note: _Isector_46 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_64 omitted because of collinearity
note: _Ieduc_66 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_73 omitted because of collinearity
note: _Ieduc_76 omitted because of collinearity
note: _Ieduc_77 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity
note: _Ieduc_86 omitted because of collinearity
note: _Ieduc_87 omitted because of collinearity
note: _Inuts2_6 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =      4938
Group variable: id                              Number of groups   =      1789

R-sq:  within  = 0.0760                         Obs per group: min =         1
       between = 0.0543                                        avg =       2.8
       overall = 0.0498                                        max =         3

                                                F(45,1788)         =         .
corr(u_i, Xb)  = -0.6690                        Prob > F           =         .

                                  (Std. Err. adjusted for 1789 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .2205321   .0486982     4.53   0.000     .1250207    .3160435
        age2 |  -.0018881   .0004997    -3.78   0.000    -.0028682    -.000908
      tenure |  -.0039245   .0061766    -0.64   0.525    -.0160386    .0081897
      female |          0  (omitted)
      months |   .0073816   .0038902     1.90   0.058    -.0002482    .0150115
         emp |   .0041819   .0009961     4.20   0.000     .0022282    .0061356
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |          0  (omitted)
_Ivuosi_1995 |          0  (omitted)
_Ivuosi_1996 |          0  (omitted)
_Ivuosi_1997 |          0  (omitted)
_Ivuosi_1998 |   .0274544   .0101212     2.71   0.007     .0076038    .0473051
_Ivuosi_1999 |          0  (omitted)
  _Isector_2 |          0  (omitted)
  _Isector_3 |          0  (omitted)
  _Isector_4 |   .0383087   .0187189     2.05   0.041     .0015954    .0750219
  _Isector_5 |  -.2951814   .1825544    -1.62   0.106    -.6532238     .062861
  _Isector_6 |          0  (omitted)
  _Isector_7 |          0  (omitted)
  _Isector_8 |          0  (omitted)
  _Isector_9 |   .1007467   .2745464     0.37   0.714    -.4377188    .6392122
 _Isector_10 |  -.4174818   .2274148    -1.84   0.067    -.8635085    .0285449
 _Isector_11 |          0  (omitted)
 _Isector_12 |  -.1562419   .1317168    -1.19   0.236     -.414577    .1020931
 _Isector_13 |   .0347954   .1121455     0.31   0.756    -.1851546    .2547454
 _Isector_14 |  -.0944088   .1527405    -0.62   0.537    -.3939775      .20516
 _Isector_15 |          0  (omitted)
 _Isector_16 |  -.2356516    .152251    -1.55   0.122    -.5342603    .0629571
 _Isector_17 |  -.0307462   .2150819    -0.14   0.886    -.4525845     .391092
 _Isector_18 |  -.0889546   .1296319    -0.69   0.493    -.3432006    .1652914
 _Isector_19 |  -.0899477    .212906    -0.42   0.673    -.5075185     .327623
 _Isector_20 |   .0102253   .1520889     0.07   0.946    -.2880653     .308516
 _Isector_21 |  -.3530544   .2400154    -1.47   0.141    -.8237945    .1176857
 _Isector_22 |  -.0238091   .1263281    -0.19   0.851    -.2715753    .2239571
 _Isector_23 |          0  (omitted)
 _Isector_24 |   -.198816   .1544604    -1.29   0.198    -.5017578    .1041258
 _Isector_25 |   .0284263   .1351827     0.21   0.833    -.2367064    .2935589
 _Isector_26 |   -.007008   .1289285    -0.05   0.957    -.2598744    .2458585
 _Isector_27 |   .0223679   .1680414     0.13   0.894    -.3072102     .351946
 _Isector_28 |          0  (omitted)
 _Isector_29 |  -.1136137   .1305149    -0.87   0.384    -.3695915    .1423641
 _Isector_30 |   .0447174   .1377791     0.32   0.746    -.2255076    .3149424
 _Isector_31 |   .3765129   .1375474     2.74   0.006     .1067423    .6462835
 _Isector_32 |          0  (omitted)
 _Isector_33 |          0  (omitted)
 _Isector_34 |          0  (omitted)
 _Isector_35 |  -.1185047    .235587    -0.50   0.615    -.5805596    .3435502
 _Isector_36 |          0  (omitted)
 _Isector_37 |          0  (omitted)
 _Isector_38 |   .1341522   .1543135     0.87   0.385    -.1685016    .4368059
 _Isector_39 |  -.0045477   .1456941    -0.03   0.975    -.2902964     .281201
 _Isector_40 |  -.1398703   .2128778    -0.66   0.511    -.5573857    .2776452
 _Isector_41 |  -.0051503   .1194424    -0.04   0.966    -.2394117    .2291112
 _Isector_42 |   -.033755   .1306966    -0.26   0.796     -.290089    .2225791
 _Isector_43 |          0  (omitted)
 _Isector_44 |    2.10655   .8737242     2.41   0.016     .3929219    3.820178
 _Isector_45 |          0  (omitted)
 _Isector_46 |          0  (omitted)
   _Ieduc_32 |          0  (omitted)
   _Ieduc_33 |          0  (omitted)
   _Ieduc_35 |   .0272268   .0612914     0.44   0.657    -.0929835    .1474371
   _Ieduc_36 |          0  (omitted)
   _Ieduc_37 |          0  (omitted)
   _Ieduc_38 |          0  (omitted)
   _Ieduc_53 |          0  (omitted)
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |   .8725221   .3349296     2.61   0.009     .2156275    1.529417
   _Ieduc_56 |          0  (omitted)
   _Ieduc_57 |          0  (omitted)
   _Ieduc_63 |          0  (omitted)
   _Ieduc_64 |          0  (omitted)
   _Ieduc_65 |   .9744773   .2846981     3.42   0.001     .4161014    1.532853
   _Ieduc_66 |          0  (omitted)
   _Ieduc_72 |          0  (omitted)
   _Ieduc_73 |          0  (omitted)
   _Ieduc_74 |   1.016059   .2812222     3.61   0.000        .4645    1.567617
   _Ieduc_75 |   1.054112   .2257731     4.67   0.000     .6113052    1.496919
   _Ieduc_76 |          0  (omitted)
   _Ieduc_77 |          0  (omitted)
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |   1.012005    .280919     3.60   0.000     .4610405    1.562969
   _Ieduc_85 |    1.11469   .2472915     4.51   0.000     .6296798    1.599701
   _Ieduc_86 |          0  (omitted)
   _Ieduc_87 |          0  (omitted)
   _Ieduc_99 |   .2747136   .1229991     2.23   0.026     .0334765    .5159506
   _Inuts2_2 |  -.2809078   .1925101    -1.46   0.145    -.6584763    .0966607
   _Inuts2_3 |  -.0424423   .1332513    -0.32   0.750     -.303787    .2189024
   _Inuts2_4 |  -.1582857   .1590576    -1.00   0.320     -.470244    .1536726
   _Inuts2_5 |  -.1159543   .1079489    -1.07   0.283    -.3276735    .0957648
   _Inuts2_6 |          0  (omitted)
        pats |   .0238554     .01441     1.66   0.098    -.0044068    .0521176
     lagpats |  -.0050745   .0229696    -0.22   0.825    -.0501245    .0399755
     lagpat2 |  -.0236531    .023215    -1.02   0.308    -.0691844    .0218783
     lagpat3 |   .0124088   .0209602     0.59   0.554    -.0287002    .0535178
     lagpat4 |   .0432689    .020847     2.08   0.038     .0023819    .0841558
     lagpat5 |   .0554034   .0212702     2.60   0.009     .0136863    .0971205
     lagpat6 |   .0486798   .0184216     2.64   0.008     .0125496    .0848099
     tenure2 |   .0004605   .0002021     2.28   0.023     .0000642    .0008568
       _cons |    3.86337   1.201754     3.21   0.001      1.50638     6.22036
-------------+----------------------------------------------------------------
     sigma_u |  .69205378
     sigma_e |  .37922612
         rho |  .76906905   (fraction of variance due to u_i)
------------------------------------------------------------------------------

. xi: xtreg logwage $expl_17 tenure2, fe robust  ;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: female omitted because of collinearity
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Ivuosi_1996 omitted because of collinearity
note: _Ivuosi_1997 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_2 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_7 omitted because of collinearity
note: _Isector_8 omitted because of collinearity
note: _Isector_11 omitted because of collinearity
note: _Isector_15 omitted because of collinearity
note: _Isector_23 omitted because of collinearity
note: _Isector_28 omitted because of collinearity
note: _Isector_32 omitted because of collinearity
note: _Isector_33 omitted because of collinearity
note: _Isector_34 omitted because of collinearity
note: _Isector_36 omitted because of collinearity
note: _Isector_37 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Isector_45 omitted because of collinearity
note: _Isector_46 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_64 omitted because of collinearity
note: _Ieduc_66 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_73 omitted because of collinearity
note: _Ieduc_76 omitted because of collinearity
note: _Ieduc_77 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity
note: _Ieduc_86 omitted because of collinearity
note: _Ieduc_87 omitted because of collinearity
note: _Inuts2_6 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =      4938
Group variable: id                              Number of groups   =      1789

R-sq:  within  = 0.0804                         Obs per group: min =         1
       between = 0.0654                                        avg =       2.8
       overall = 0.0610                                        max =         3

                                                F(45,1788)         =         .
corr(u_i, Xb)  = -0.6384                        Prob > F           =         .

                                  (Std. Err. adjusted for 1789 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .1955531   .0486961     4.02   0.000     .1000458    .2910604
        age2 |   -.001643   .0004994    -3.29   0.001    -.0026225   -.0006635
      tenure |  -.0033549   .0060848    -0.55   0.581     -.015289    .0085791
      female |          0  (omitted)
      months |   .0057537   .0047793     1.20   0.229    -.0036199    .0151273
         emp |   .0042231   .0009972     4.24   0.000     .0022674    .0061788
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |          0  (omitted)
_Ivuosi_1995 |          0  (omitted)
_Ivuosi_1996 |          0  (omitted)
_Ivuosi_1997 |          0  (omitted)
_Ivuosi_1998 |    .026443   .0102997     2.57   0.010     .0062423    .0466437
_Ivuosi_1999 |          0  (omitted)
  _Isector_2 |          0  (omitted)
  _Isector_3 |          0  (omitted)
  _Isector_4 |   .0413887   .0160062     2.59   0.010     .0099959    .0727816
  _Isector_5 |  -.2809953    .187889    -1.50   0.135    -.6495005    .0875099
  _Isector_6 |          0  (omitted)
  _Isector_7 |          0  (omitted)
  _Isector_8 |          0  (omitted)
  _Isector_9 |   .1335757   .2607286     0.51   0.608    -.3777892    .6449406
 _Isector_10 |  -.4094714   .2178663    -1.88   0.060    -.8367707     .017828
 _Isector_11 |          0  (omitted)
 _Isector_12 |  -.1541915   .1345612    -1.15   0.252    -.4181051    .1097222
 _Isector_13 |   .0414389   .1164591     0.36   0.722    -.1869713    .2698491
 _Isector_14 |  -.0830531   .1522609    -0.55   0.586    -.3816812    .2155749
 _Isector_15 |          0  (omitted)
 _Isector_16 |  -.2182653   .1515812    -1.44   0.150    -.5155603    .0790298
 _Isector_17 |  -.0330908   .2203121    -0.15   0.881     -.465187    .3990054
 _Isector_18 |  -.0681619    .133327    -0.51   0.609    -.3296549    .1933312
 _Isector_19 |  -.0841408   .2123253    -0.40   0.692    -.5005726     .332291
 _Isector_20 |   .0191762   .1522173     0.13   0.900    -.2793664    .3177187
 _Isector_21 |  -.3458783   .2406979    -1.44   0.151    -.8179571    .1262005
 _Isector_22 |  -.0155566    .130029    -0.12   0.905    -.2705814    .2394683
 _Isector_23 |          0  (omitted)
 _Isector_24 |  -.1874974   .1572569    -1.19   0.233    -.4959241    .1209293
 _Isector_25 |   .0224234   .1316154     0.17   0.865    -.2357129    .2805596
 _Isector_26 |  -.0107254   .1328366    -0.08   0.936    -.2712568    .2498059
 _Isector_27 |   .0772315   .1680264     0.46   0.646    -.2523173    .4067802
 _Isector_28 |          0  (omitted)
 _Isector_29 |  -.1105846    .134176    -0.82   0.410    -.3737428    .1525736
 _Isector_30 |   .0515845   .1399528     0.37   0.712    -.2229038    .3260729
 _Isector_31 |   .3418715   .1476768     2.31   0.021     .0522343    .6315088
 _Isector_32 |          0  (omitted)
 _Isector_33 |          0  (omitted)
 _Isector_34 |          0  (omitted)
 _Isector_35 |  -.0968878   .2366352    -0.41   0.682    -.5609985    .3672229
 _Isector_36 |          0  (omitted)
 _Isector_37 |          0  (omitted)
 _Isector_38 |   .1395729   .1583797     0.88   0.378    -.1710559    .4502016
 _Isector_39 |   .0212887   .1333331     0.16   0.873    -.2402164    .2827938
 _Isector_40 |  -.1084281   .2142191    -0.51   0.613    -.5285743    .3117181
 _Isector_41 |  -.0045525   .1235938    -0.04   0.971    -.2469561     .237851
 _Isector_42 |   -.021815   .1333039    -0.16   0.870    -.2832629    .2396329
 _Isector_43 |          0  (omitted)
 _Isector_44 |    2.05925   .8524253     2.42   0.016     .3873957    3.731105
 _Isector_45 |          0  (omitted)
 _Isector_46 |          0  (omitted)
   _Ieduc_32 |          0  (omitted)
   _Ieduc_33 |          0  (omitted)
   _Ieduc_35 |   .0243397    .046353     0.53   0.600    -.0665721    .1152515
   _Ieduc_36 |          0  (omitted)
   _Ieduc_37 |          0  (omitted)
   _Ieduc_38 |          0  (omitted)
   _Ieduc_53 |          0  (omitted)
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |   .8227741   .3290028     2.50   0.012     .1775036    1.468045
   _Ieduc_56 |          0  (omitted)
   _Ieduc_57 |          0  (omitted)
   _Ieduc_63 |          0  (omitted)
   _Ieduc_64 |          0  (omitted)
   _Ieduc_65 |   .9618005   .2877774     3.34   0.001      .397385    1.526216
   _Ieduc_66 |          0  (omitted)
   _Ieduc_72 |          0  (omitted)
   _Ieduc_73 |          0  (omitted)
   _Ieduc_74 |   1.007436   .2841662     3.55   0.000     .4501033    1.564769
   _Ieduc_75 |   1.039356   .2296319     4.53   0.000     .5889806    1.489731
   _Ieduc_76 |          0  (omitted)
   _Ieduc_77 |          0  (omitted)
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |   1.001495   .2876899     3.48   0.001     .4372515    1.565739
   _Ieduc_85 |   1.100819   .2602769     4.23   0.000     .5903399    1.611298
   _Ieduc_86 |          0  (omitted)
   _Ieduc_87 |          0  (omitted)
   _Ieduc_99 |    .247635   .1169902     2.12   0.034      .018183    .4770869
   _Inuts2_2 |   -.277891    .191051    -1.45   0.146    -.6525977    .0968157
   _Inuts2_3 |  -.0625974   .1323875    -0.47   0.636    -.3222479     .197053
   _Inuts2_4 |  -.1414852   .1569843    -0.90   0.368    -.4493772    .1664069
   _Inuts2_5 |  -.0705079   .1173029    -0.60   0.548    -.3005731    .1595572
   _Inuts2_6 |          0  (omitted)
        pats |    .029211   .0137261     2.13   0.033     .0022901    .0561318
     lagcits |  -.0003976    .001574    -0.25   0.801    -.0034846    .0026894
     lagcit2 |   .0011379   .0017923     0.63   0.526    -.0023773    .0046531
     lagcit3 |     .00351   .0019691     1.78   0.075    -.0003521     .007372
     lagcit4 |   .0033502   .0018659     1.80   0.073    -.0003094    .0070098
     lagcit5 |   .0042318   .0016563     2.56   0.011     .0009834    .0074802
     lagcit6 |   .0050123   .0025774     1.94   0.052    -.0000427    .0100673
     tenure2 |   .0004273   .0001948     2.19   0.028     .0000451    .0008094
       _cons |   4.477951   1.219703     3.67   0.000     2.085758    6.870143
-------------+----------------------------------------------------------------
     sigma_u |   .6649128
     sigma_e |  .37832761
         rho |  .75543097   (fraction of variance due to u_i)
------------------------------------------------------------------------------

. *-----------------------------------------------------;
. * tests of exogeneity using leads;
. xi: xtreg logwage $expl_5 f.pats f2.pats, fe robust;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: female omitted because of collinearity
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Ivuosi_1997 omitted because of collinearity
note: _Ivuosi_1998 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_7 omitted because of collinearity
note: _Isector_8 omitted because of collinearity
note: _Isector_11 omitted because of collinearity
note: _Isector_28 omitted because of collinearity
note: _Isector_30 omitted because of collinearity
note: _Isector_31 omitted because of collinearity
note: _Isector_32 omitted because of collinearity
note: _Isector_33 omitted because of collinearity
note: _Isector_34 omitted because of collinearity
note: _Isector_36 omitted because of collinearity
note: _Isector_37 omitted because of collinearity
note: _Isector_38 omitted because of collinearity
note: _Isector_39 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Isector_45 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_64 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_73 omitted because of collinearity
note: _Ieduc_76 omitted because of collinearity
note: _Ieduc_77 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity
note: _Ieduc_86 omitted because of collinearity
note: _Ieduc_87 omitted because of collinearity
note: _Ieduc_99 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =      4704
Group variable: id                              Number of groups   =      1704

R-sq:  within  = 0.1269                         Obs per group: min =         1
       between = 0.1429                                        avg =       2.8
       overall = 0.1305                                        max =         3

                                                F(41,1703)         =         .
corr(u_i, Xb)  = -0.5363                        Prob > F           =         .

                                  (Std. Err. adjusted for 1704 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .1286819   .0261726     4.92   0.000     .0773481    .1800157
        age2 |   -.001053   .0002816    -3.74   0.000    -.0016052   -.0005007
      tenure |   .0006565   .0035331     0.19   0.853    -.0062732    .0075861
      female |          0  (omitted)
      months |   .1841198   .0469397     3.92   0.000     .0920541    .2761854
         emp |   .0015467   .0007137     2.17   0.030     .0001469    .0029466
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |          0  (omitted)
_Ivuosi_1995 |          0  (omitted)
_Ivuosi_1996 |   -.005486    .005184    -1.06   0.290    -.0156536    .0046815
_Ivuosi_1997 |          0  (omitted)
_Ivuosi_1998 |          0  (omitted)
_Ivuosi_1999 |          0  (omitted)
  _Isector_2 |  -.0644793   .0101476    -6.35   0.000    -.0843825   -.0445762
  _Isector_3 |          0  (omitted)
  _Isector_4 |   .0218228   .1910508     0.11   0.909    -.3528962    .3965419
  _Isector_5 |  -.0790593   .0577177    -1.37   0.171    -.1922644    .0341458
  _Isector_6 |          0  (omitted)
  _Isector_7 |          0  (omitted)
  _Isector_8 |          0  (omitted)
  _Isector_9 |  -.3667446   .1090184    -3.36   0.001    -.5805686   -.1529205
 _Isector_10 |   -.031246   .2596489    -0.12   0.904    -.5405103    .4780184
 _Isector_11 |          0  (omitted)
 _Isector_12 |  -.1277203    .129247    -0.99   0.323    -.3812199    .1257793
 _Isector_13 |  -.2368098   .1118045    -2.12   0.034    -.4560985   -.0175211
 _Isector_14 |   .1446569   .1988653     0.73   0.467    -.2453891    .5347028
 _Isector_15 |  -.0148621   .1913739    -0.08   0.938    -.3902147    .3604906
 _Isector_16 |  -.1496167   .1191546    -1.26   0.209    -.3833215     .084088
 _Isector_17 |  -.1978919   .1050791    -1.88   0.060    -.4039896    .0082058
 _Isector_18 |  -.1879949   .1005685    -1.87   0.062    -.3852457    .0092559
 _Isector_19 |  -.1498845   .1149003    -1.30   0.192    -.3752451    .0754762
 _Isector_20 |  -.1043867   .1188576    -0.88   0.380    -.3375091    .1287357
 _Isector_21 |  -.2178397   .1144256    -1.90   0.057    -.4422693    .0065899
 _Isector_22 |  -.0896759   .1108377    -0.81   0.419    -.3070682    .1277164
 _Isector_23 |  -.2412535   .1521095    -1.59   0.113    -.5395947    .0570877
 _Isector_24 |   .0651235   .3068363     0.21   0.832    -.5366923    .6669392
 _Isector_25 |  -.0165898   .1793875    -0.09   0.926    -.3684329    .3352533
 _Isector_26 |  -.0230495   .1044437    -0.22   0.825     -.227901    .1818021
 _Isector_27 |   -.122693   .3623844    -0.34   0.735    -.8334586    .5880725
 _Isector_28 |          0  (omitted)
 _Isector_29 |  -.3283219   .1268134    -2.59   0.010    -.5770484   -.0795954
 _Isector_30 |          0  (omitted)
 _Isector_31 |          0  (omitted)
 _Isector_32 |          0  (omitted)
 _Isector_33 |          0  (omitted)
 _Isector_34 |          0  (omitted)
 _Isector_35 |   .7209239   .5603198     1.29   0.198    -.3780639    1.819912
 _Isector_36 |          0  (omitted)
 _Isector_37 |          0  (omitted)
 _Isector_38 |          0  (omitted)
 _Isector_39 |          0  (omitted)
 _Isector_40 |   .0893773   .1790383     0.50   0.618     -.261781    .4405355
 _Isector_41 |  -.2286813    .129277    -1.77   0.077    -.4822398    .0248773
 _Isector_42 |  -.1771663   .0938863    -1.89   0.059    -.3613109    .0069784
 _Isector_43 |          0  (omitted)
 _Isector_44 |   .3214615   .1036045     3.10   0.002      .118256     .524667
 _Isector_45 |          0  (omitted)
 _Isector_46 |   .1102127   .1874777     0.59   0.557    -.2574982    .4779237
   _Ieduc_32 |          0  (omitted)
   _Ieduc_33 |          0  (omitted)
   _Ieduc_35 |  -.3419306   .2907193    -1.18   0.240    -.9121352     .228274
   _Ieduc_36 |          0  (omitted)
   _Ieduc_37 |          0  (omitted)
   _Ieduc_38 |          0  (omitted)
   _Ieduc_53 |          0  (omitted)
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |   .0023502   .1416637     0.02   0.987     -.275503    .2802034
   _Ieduc_56 |          0  (omitted)
   _Ieduc_57 |          0  (omitted)
   _Ieduc_63 |          0  (omitted)
   _Ieduc_64 |          0  (omitted)
   _Ieduc_65 |    .111587   .2045882     0.55   0.586    -.2896836    .5128576
   _Ieduc_66 |    .381813   .3219823     1.19   0.236    -.2497096    1.013336
   _Ieduc_72 |          0  (omitted)
   _Ieduc_73 |          0  (omitted)
   _Ieduc_74 |   .3385894    .323401     1.05   0.295    -.2957158    .9728946
   _Ieduc_75 |   .2080316   .2318068     0.90   0.370    -.2466246    .6626877
   _Ieduc_76 |          0  (omitted)
   _Ieduc_77 |          0  (omitted)
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |   .3445609   .3229598     1.07   0.286    -.2888789    .9780007
   _Ieduc_85 |   .5268978   .3229668     1.63   0.103    -.1065557    1.160351
   _Ieduc_86 |          0  (omitted)
   _Ieduc_87 |          0  (omitted)
   _Ieduc_99 |          0  (omitted)
   _Inuts2_2 |   .0244674   .0684727     0.36   0.721     -.109832    .1587668
   _Inuts2_3 |  -.0522365   .0782768    -0.67   0.505    -.2057652    .1012922
   _Inuts2_4 |   .1063331   .1901065     0.56   0.576    -.2665338    .4792001
   _Inuts2_5 |  -.3301994   .1528552    -2.16   0.031    -.6300032   -.0303957
   _Inuts2_6 |  -.0107675    .022678    -0.47   0.635    -.0552472    .0337122
        pats |   .0210939    .015092     1.40   0.162     -.008507    .0506948
     lagpats |   .0074664   .0104724     0.71   0.476    -.0130736    .0280065
     lagpat2 |   .0090387   .0088196     1.02   0.306    -.0082598    .0263371
     lagpat3 |   -.012366   .0161314    -0.77   0.443    -.0440055    .0192736
     lagpat4 |   .0016406    .007515     0.22   0.827    -.0130989    .0163802
             |
        pats |
         F1. |   .0006653   .0096492     0.07   0.945    -.0182602    .0195908
         F2. |   .0076068    .006027     1.26   0.207    -.0042142    .0194279
             |
       _cons |   4.889043   .8360821     5.85   0.000     3.249187    6.528899
-------------+----------------------------------------------------------------
     sigma_u |  .45015427
     sigma_e |  .20374022
         rho |  .82998051   (fraction of variance due to u_i)
------------------------------------------------------------------------------

. xi: xtreg logwage $expl_6 f.pats, fe robust;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: female omitted because of collinearity
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Ivuosi_1996 omitted because of collinearity
note: _Ivuosi_1998 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_7 omitted because of collinearity
note: _Isector_8 omitted because of collinearity
note: _Isector_11 omitted because of collinearity
note: _Isector_15 omitted because of collinearity
note: _Isector_28 omitted because of collinearity
note: _Isector_31 omitted because of collinearity
note: _Isector_32 omitted because of collinearity
note: _Isector_33 omitted because of collinearity
note: _Isector_34 omitted because of collinearity
note: _Isector_36 omitted because of collinearity
note: _Isector_37 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Isector_45 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_64 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_73 omitted because of collinearity
note: _Ieduc_76 omitted because of collinearity
note: _Ieduc_77 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity
note: _Ieduc_84 omitted because of collinearity
note: _Ieduc_86 omitted because of collinearity
note: _Ieduc_87 omitted because of collinearity
note: _Ieduc_99 omitted because of collinearity
note: _Inuts2_6 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =      4808
Group variable: id                              Number of groups   =      1741

R-sq:  within  = 0.2169                         Obs per group: min =         1
       between = 0.0232                                        avg =       2.8
       overall = 0.0262                                        max =         3

                                                F(40,1740)         =         .
corr(u_i, Xb)  = -0.7622                        Prob > F           =         .

                                  (Std. Err. adjusted for 1741 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .2371429    .025149     9.43   0.000     .1878174    .2864684
        age2 |  -.0019814    .000273    -7.26   0.000    -.0025168   -.0014459
      tenure |   .0006517    .002384     0.27   0.785    -.0040242    .0053276
      female |          0  (omitted)
      months |   .1357084   .0371243     3.66   0.000     .0628956    .2085213
         emp |   .0025549    .000542     4.71   0.000     .0014919    .0036179
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |          0  (omitted)
_Ivuosi_1995 |          0  (omitted)
_Ivuosi_1996 |          0  (omitted)
_Ivuosi_1997 |   -.026508   .0053606    -4.94   0.000    -.0370219    -.015994
_Ivuosi_1998 |          0  (omitted)
_Ivuosi_1999 |          0  (omitted)
  _Isector_2 |  -.0797018   .0069254   -11.51   0.000    -.0932848   -.0661187
  _Isector_3 |          0  (omitted)
  _Isector_4 |    .050291   .0134316     3.74   0.000     .0239473    .0766347
  _Isector_5 |  -.1241687    .044405    -2.80   0.005    -.2112615   -.0370759
  _Isector_6 |          0  (omitted)
  _Isector_7 |          0  (omitted)
  _Isector_8 |          0  (omitted)
  _Isector_9 |  -.1938837   .0858469    -2.26   0.024    -.3622578   -.0255097
 _Isector_10 |   .6919133   .1444895     4.79   0.000      .408522    .9753046
 _Isector_11 |          0  (omitted)
 _Isector_12 |  -.2075688   .1015153    -2.04   0.041    -.4066737    -.008464
 _Isector_13 |  -.2067004   .0697824    -2.96   0.003    -.3435667   -.0698341
 _Isector_14 |  -.1346086   .0813366    -1.65   0.098    -.2941364    .0249192
 _Isector_15 |          0  (omitted)
 _Isector_16 |   -.032921   .0810669    -0.41   0.685    -.1919198    .1260778
 _Isector_17 |  -.1967034   .0720131    -2.73   0.006    -.3379447   -.0554621
 _Isector_18 |   -.153571   .0588303    -2.61   0.009    -.2689566   -.0381854
 _Isector_19 |  -.1294968    .102202    -1.27   0.205    -.3299484    .0709549
 _Isector_20 |  -.0727505   .0860712    -0.85   0.398    -.2415644    .0960634
 _Isector_21 |  -.1347618    .151368    -0.89   0.373     -.431644    .1621205
 _Isector_22 |  -.0773254    .079814    -0.97   0.333    -.2338668     .079216
 _Isector_23 |  -.1724554   .1223078    -1.41   0.159    -.4123411    .0674304
 _Isector_24 |  -.2985373    .104327    -2.86   0.004    -.5031568   -.0939178
 _Isector_25 |  -.1545743   .0854959    -1.81   0.071    -.3222598    .0131111
 _Isector_26 |  -.0856532   .0626822    -1.37   0.172    -.2085936    .0372872
 _Isector_27 |   .7800779   .5483661     1.42   0.155     -.295448    1.855604
 _Isector_28 |          0  (omitted)
 _Isector_29 |  -.1116297    .078861    -1.42   0.157    -.2663021    .0430426
 _Isector_30 |  -.0448492   .0670197    -0.67   0.503    -.1762969    .0865985
 _Isector_31 |          0  (omitted)
 _Isector_32 |          0  (omitted)
 _Isector_33 |          0  (omitted)
 _Isector_34 |          0  (omitted)
 _Isector_35 |  -.0927086   .1761012    -0.53   0.599    -.4381008    .2526837
 _Isector_36 |          0  (omitted)
 _Isector_37 |          0  (omitted)
 _Isector_38 |   .7516865   .0661507    11.36   0.000     .6219432    .8814298
 _Isector_39 |  -.4393905   .0516529    -8.51   0.000    -.5406988   -.3380821
 _Isector_40 |  -.1356086   .0968754    -1.40   0.162    -.3256131    .0543958
 _Isector_41 |  -.2198099   .0603273    -3.64   0.000    -.3381315   -.1014882
 _Isector_42 |  -.2073396   .0614587    -3.37   0.001    -.3278804   -.0867988
 _Isector_43 |          0  (omitted)
 _Isector_44 |   1.263549   .6740593     1.87   0.061    -.0585022    2.585601
 _Isector_45 |          0  (omitted)
 _Isector_46 |    -.01444   .0978263    -0.15   0.883    -.2063095    .1774295
   _Ieduc_32 |          0  (omitted)
   _Ieduc_33 |          0  (omitted)
   _Ieduc_35 |  -.2146784   .1325548    -1.62   0.106     -.474662    .0453052
   _Ieduc_36 |          0  (omitted)
   _Ieduc_37 |          0  (omitted)
   _Ieduc_38 |          0  (omitted)
   _Ieduc_53 |          0  (omitted)
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |  -.0665821   .0101935    -6.53   0.000    -.0865749   -.0465894
   _Ieduc_56 |          0  (omitted)
   _Ieduc_57 |          0  (omitted)
   _Ieduc_63 |          0  (omitted)
   _Ieduc_64 |          0  (omitted)
   _Ieduc_65 |  -.0705856   .0792528    -0.89   0.373    -.2260262    .0848551
   _Ieduc_66 |  -.0228555   .0910745    -0.25   0.802    -.2014825    .1557714
   _Ieduc_72 |          0  (omitted)
   _Ieduc_73 |          0  (omitted)
   _Ieduc_74 |   .0176318    .082825     0.21   0.831    -.1448151    .1800787
   _Ieduc_75 |  -.1552993   .1453456    -1.07   0.285    -.4403697    .1297712
   _Ieduc_76 |          0  (omitted)
   _Ieduc_77 |          0  (omitted)
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |          0  (omitted)
   _Ieduc_85 |  -.2263523   .1611455    -1.40   0.160    -.5424115    .0897069
   _Ieduc_86 |          0  (omitted)
   _Ieduc_87 |          0  (omitted)
   _Ieduc_99 |          0  (omitted)
   _Inuts2_2 |  -.1907777   .1125525    -1.70   0.090    -.4115301    .0299746
   _Inuts2_3 |  -.1429688   .0780243    -1.83   0.067    -.2960002    .0100625
   _Inuts2_4 |  -.1976157   .0720836    -2.74   0.006    -.3389952   -.0562362
   _Inuts2_5 |  -.2570345   .1221033    -2.11   0.035    -.4965191   -.0175499
   _Inuts2_6 |          0  (omitted)
        pats |   .0150725   .0083954     1.80   0.073    -.0013937    .0315386
     lagpats |   .0026876   .0105669     0.25   0.799    -.0180377    .0234128
     lagpat2 |   .0043386   .0098334     0.44   0.659    -.0149478    .0236251
     lagpat3 |   .0036574   .0196783     0.19   0.853    -.0349383    .0422531
     lagpat4 |   .0326613   .0107354     3.04   0.002     .0116057     .053717
     lagpat5 |   .0082667    .011964     0.69   0.490    -.0151986     .031732
             |
        pats |
         F1. |  -.0076092   .0062707    -1.21   0.225    -.0199081    .0046897
             |
       _cons |   2.898536   .7016041     4.13   0.000      1.52246    4.274612
-------------+----------------------------------------------------------------
     sigma_u |  .64687447
     sigma_e |  .19989163
         rho |  .91283512   (fraction of variance due to u_i)
------------------------------------------------------------------------------

. xi: xtreg logwage $expl_7 f.pats, fe robust;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: female omitted because of collinearity
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Ivuosi_1996 omitted because of collinearity
note: _Ivuosi_1997 omitted because of collinearity
note: _Ivuosi_1998 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_2 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_7 omitted because of collinearity
note: _Isector_8 omitted because of collinearity
note: _Isector_9 omitted because of collinearity
note: _Isector_10 omitted because of collinearity
note: _Isector_11 omitted because of collinearity
note: _Isector_15 omitted because of collinearity
note: _Isector_25 omitted because of collinearity
note: _Isector_27 omitted because of collinearity
note: _Isector_28 omitted because of collinearity
note: _Isector_31 omitted because of collinearity
note: _Isector_32 omitted because of collinearity
note: _Isector_33 omitted because of collinearity
note: _Isector_34 omitted because of collinearity
note: _Isector_36 omitted because of collinearity
note: _Isector_37 omitted because of collinearity
note: _Isector_38 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Isector_45 omitted because of collinearity
note: _Isector_46 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_64 omitted because of collinearity
note: _Ieduc_66 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_73 omitted because of collinearity
note: _Ieduc_74 omitted because of collinearity
note: _Ieduc_76 omitted because of collinearity
note: _Ieduc_77 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity
note: _Ieduc_84 omitted because of collinearity
note: _Ieduc_85 omitted because of collinearity
note: _Ieduc_86 omitted because of collinearity
note: _Ieduc_87 omitted because of collinearity
note: _Ieduc_99 omitted because of collinearity
note: _Inuts2_6 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =      3126
Group variable: id                              Number of groups   =      1639

R-sq:  within  = 0.1998                         Obs per group: min =         1
       between = 0.0431                                        avg =       1.9
       overall = 0.0428                                        max =         2

                                                F(34,1638)         =         .
corr(u_i, Xb)  = -0.7930                        Prob > F           =         .

                                  (Std. Err. adjusted for 1639 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .2922459   .0469377     6.23   0.000     .2001816    .3843101
        age2 |  -.0024083   .0004939    -4.88   0.000    -.0033771   -.0014395
      tenure |   .0095945   .0022507     4.26   0.000     .0051799    .0140091
      female |          0  (omitted)
      months |    .053249   .0255567     2.08   0.037     .0031218    .1033762
         emp |   .0025633   .0006722     3.81   0.000     .0012449    .0038817
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |          0  (omitted)
_Ivuosi_1995 |          0  (omitted)
_Ivuosi_1996 |          0  (omitted)
_Ivuosi_1997 |          0  (omitted)
_Ivuosi_1998 |          0  (omitted)
_Ivuosi_1999 |          0  (omitted)
  _Isector_2 |          0  (omitted)
  _Isector_3 |          0  (omitted)
  _Isector_4 |    .046518   .0193601     2.40   0.016     .0085448    .0844912
  _Isector_5 |  -.0508216   .1961307    -0.26   0.796     -.435515    .3338719
  _Isector_6 |          0  (omitted)
  _Isector_7 |          0  (omitted)
  _Isector_8 |          0  (omitted)
  _Isector_9 |          0  (omitted)
 _Isector_10 |          0  (omitted)
 _Isector_11 |          0  (omitted)
 _Isector_12 |  -.1969514   .0391799    -5.03   0.000    -.2737993   -.1201034
 _Isector_13 |  -.2480326   .2137683    -1.16   0.246    -.6673207    .1712555
 _Isector_14 |  -.0839257   .2018022    -0.42   0.678    -.4797431    .3118918
 _Isector_15 |          0  (omitted)
 _Isector_16 |  -.1478908   .2104237    -0.70   0.482    -.5606187     .264837
 _Isector_17 |  -.2237865   .2023378    -1.11   0.269    -.6206546    .1730816
 _Isector_18 |  -.2612138   .1950836    -1.34   0.181    -.6438534    .1214258
 _Isector_19 |  -.1114181   .2849911    -0.39   0.696    -.6704034    .4475671
 _Isector_20 |  -.0058484     .19864    -0.03   0.977    -.3954637    .3837668
 _Isector_21 |  -.0990764   .2774085    -0.36   0.721    -.6431892    .4450363
 _Isector_22 |   -.091023   .2065409    -0.44   0.659    -.4961351    .3140892
 _Isector_23 |  -.3780358   .3477769    -1.09   0.277     -1.06017    .3040984
 _Isector_24 |    -.66043   .2007766    -3.29   0.001    -1.054236   -.2666241
 _Isector_25 |          0  (omitted)
 _Isector_26 |   .0111124   .0167476     0.66   0.507    -.0217365    .0439614
 _Isector_27 |          0  (omitted)
 _Isector_28 |          0  (omitted)
 _Isector_29 |  -.0963171   .1938497    -0.50   0.619    -.4765366    .2839023
 _Isector_30 |  -.1718541    .233299    -0.74   0.461    -.6294498    .2857417
 _Isector_31 |          0  (omitted)
 _Isector_32 |          0  (omitted)
 _Isector_33 |          0  (omitted)
 _Isector_34 |          0  (omitted)
 _Isector_35 |   -.047357   .2828623    -0.17   0.867    -.6021669    .5074529
 _Isector_36 |          0  (omitted)
 _Isector_37 |          0  (omitted)
 _Isector_38 |          0  (omitted)
 _Isector_39 |  -.7499493   .2278068    -3.29   0.001    -1.196773    -.303126
 _Isector_40 |  -.2224077   .2081573    -1.07   0.285    -.6306902    .1858748
 _Isector_41 |  -.3753943   .2286895    -1.64   0.101     -.823949    .0731603
 _Isector_42 |  -.3641801   .2331083    -1.56   0.118    -.8214018    .0930416
 _Isector_43 |          0  (omitted)
 _Isector_44 |   1.144049   .7727563     1.48   0.139    -.3716455    2.659744
 _Isector_45 |          0  (omitted)
 _Isector_46 |          0  (omitted)
   _Ieduc_32 |          0  (omitted)
   _Ieduc_33 |          0  (omitted)
   _Ieduc_35 |  -.3068267   .1926623    -1.59   0.111    -.6847171    .0710637
   _Ieduc_36 |          0  (omitted)
   _Ieduc_37 |          0  (omitted)
   _Ieduc_38 |          0  (omitted)
   _Ieduc_53 |          0  (omitted)
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |  -.1415566   .1084966    -1.30   0.192    -.3543632    .0712501
   _Ieduc_56 |          0  (omitted)
   _Ieduc_57 |          0  (omitted)
   _Ieduc_63 |          0  (omitted)
   _Ieduc_64 |          0  (omitted)
   _Ieduc_65 |  -.0435228   .0167035    -2.61   0.009    -.0762853   -.0107603
   _Ieduc_66 |          0  (omitted)
   _Ieduc_72 |          0  (omitted)
   _Ieduc_73 |          0  (omitted)
   _Ieduc_74 |          0  (omitted)
   _Ieduc_75 |   .0773582   .0196828     3.93   0.000     .0387522    .1159643
   _Ieduc_76 |          0  (omitted)
   _Ieduc_77 |          0  (omitted)
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |          0  (omitted)
   _Ieduc_85 |          0  (omitted)
   _Ieduc_86 |          0  (omitted)
   _Ieduc_87 |          0  (omitted)
   _Ieduc_99 |          0  (omitted)
   _Inuts2_2 |  -.3793083   .2690696    -1.41   0.159    -.9070651    .1484485
   _Inuts2_3 |  -.3886342    .287951    -1.35   0.177    -.9534252    .1761568
   _Inuts2_4 |  -.3773013   .2725419    -1.38   0.166    -.9118687     .157266
   _Inuts2_5 |  -.1594464   .1486665    -1.07   0.284    -.4510428      .13215
   _Inuts2_6 |          0  (omitted)
        pats |   .0059315   .0114981     0.52   0.606    -.0166209    .0284839
     lagpats |  -.0006838   .0251128    -0.03   0.978    -.0499404    .0485728
     lagpat2 |  -.0030736   .0161294    -0.19   0.849      -.03471    .0285627
     lagpat3 |   .0117884   .0224441     0.53   0.599    -.0322338    .0558105
     lagpat4 |   .0651165   .0306185     2.13   0.034     .0050609     .125172
     lagpat5 |   .0464158   .0201631     2.30   0.021     .0068676     .085964
     lagpat6 |   .0473512   .0184233     2.57   0.010     .0112154    .0834869
             |
        pats |
         F1. |  -.0140029   .0105245    -1.33   0.184    -.0346458      .00664
             |
       _cons |   2.236113    1.10896     2.02   0.044     .0609844    4.411241
-------------+----------------------------------------------------------------
     sigma_u |  .70999104
     sigma_e |  .20197259
         rho |  .92513414   (fraction of variance due to u_i)
------------------------------------------------------------------------------

. *-----------------------------------------------------;
. *controlling for firm effects;
. *-----------------------------------------------------;
. *average firm wage;
. xi: xtreg logwage $expl_7 firmwage, fe robust  ;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: female omitted because of collinearity
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Ivuosi_1996 omitted because of collinearity
note: _Ivuosi_1997 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_2 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_7 omitted because of collinearity
note: _Isector_8 omitted because of collinearity
note: _Isector_9 omitted because of collinearity
note: _Isector_11 omitted because of collinearity
note: _Isector_15 omitted because of collinearity
note: _Isector_28 omitted because of collinearity
note: _Isector_31 omitted because of collinearity
note: _Isector_32 omitted because of collinearity
note: _Isector_33 omitted because of collinearity
note: _Isector_34 omitted because of collinearity
note: _Isector_36 omitted because of collinearity
note: _Isector_37 omitted because of collinearity
note: _Isector_39 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Isector_44 omitted because of collinearity
note: _Isector_45 omitted because of collinearity
note: _Isector_46 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_64 omitted because of collinearity
note: _Ieduc_66 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_73 omitted because of collinearity
note: _Ieduc_76 omitted because of collinearity
note: _Ieduc_77 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity
note: _Ieduc_86 omitted because of collinearity
note: _Ieduc_87 omitted because of collinearity
note: _Inuts2_6 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =      4450
Group variable: id                              Number of groups   =      1656

R-sq:  within  = 0.0979                         Obs per group: min =         1
       between = 0.0631                                        avg =       2.7
       overall = 0.0686                                        max =         3

                                                F(41,1655)         =         .
corr(u_i, Xb)  = -0.4189                        Prob > F           =         .

                                  (Std. Err. adjusted for 1656 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .0580416   .0495942     1.17   0.242    -.0392323    .1553156
        age2 |  -.0005051   .0005132    -0.98   0.325    -.0015116    .0005015
      tenure |   .0075978    .002103     3.61   0.000      .003473    .0117226
      female |          0  (omitted)
      months |   .0048776   .0036184     1.35   0.178    -.0022196    .0119748
         emp |   .0021539     .00081     2.66   0.008     .0005652    .0037426
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |          0  (omitted)
_Ivuosi_1995 |          0  (omitted)
_Ivuosi_1996 |          0  (omitted)
_Ivuosi_1997 |          0  (omitted)
_Ivuosi_1998 |   .0411007   .0102202     4.02   0.000     .0210548    .0611465
_Ivuosi_1999 |          0  (omitted)
  _Isector_2 |          0  (omitted)
  _Isector_3 |          0  (omitted)
  _Isector_4 |   .0292259   .0202701     1.44   0.150    -.0105318    .0689837
  _Isector_5 |   .2471722   .2066756     1.20   0.232     -.158201    .6525455
  _Isector_6 |          0  (omitted)
  _Isector_7 |          0  (omitted)
  _Isector_8 |          0  (omitted)
  _Isector_9 |          0  (omitted)
 _Isector_10 |   .1926246   .2476058     0.78   0.437     -.293029    .6782782
 _Isector_11 |          0  (omitted)
 _Isector_12 |   .4629735   .1182731     3.91   0.000     .2309929    .6949542
 _Isector_13 |   .6721422    .103403     6.50   0.000     .4693277    .8749568
 _Isector_14 |   .4303134   .1549721     2.78   0.006     .1263513    .7342755
 _Isector_15 |          0  (omitted)
 _Isector_16 |   .4081676   .1474514     2.77   0.006     .1189566    .6973786
 _Isector_17 |   .9290926   .2537482     3.66   0.000     .4313913    1.426794
 _Isector_18 |   .4792152   .1316986     3.64   0.000     .2209019    .7375286
 _Isector_19 |   .6456047   .1908379     3.38   0.001     .2712955    1.019914
 _Isector_20 |   .6043162   .1520105     3.98   0.000     .3061631    .9024693
 _Isector_21 |   .4075896   .2105738     1.94   0.053    -.0054295    .8206087
 _Isector_22 |   .5420907   .1208353     4.49   0.000     .3050846    .7790969
 _Isector_23 |   .5548766   .1793835     3.09   0.002     .2030341     .906719
 _Isector_24 |    .470505    .183672     2.56   0.011     .1102511     .830759
 _Isector_25 |   .8075787    .122061     6.62   0.000     .5681685    1.046989
 _Isector_26 |   .4817737   .1362254     3.54   0.000     .2145815     .748966
 _Isector_27 |   .3755932   .1403273     2.68   0.008     .1003553     .650831
 _Isector_28 |          0  (omitted)
 _Isector_29 |   .4552048   .1554316     2.93   0.003     .1503416     .760068
 _Isector_30 |   1.178305   .1974719     5.97   0.000     .7909842    1.565626
 _Isector_31 |          0  (omitted)
 _Isector_32 |          0  (omitted)
 _Isector_33 |          0  (omitted)
 _Isector_34 |          0  (omitted)
 _Isector_35 |   .3175179   .1947386     1.63   0.103    -.0644422     .699478
 _Isector_36 |          0  (omitted)
 _Isector_37 |          0  (omitted)
 _Isector_38 |   .5090198   .1284476     3.96   0.000     .2570828    .7609567
 _Isector_39 |          0  (omitted)
 _Isector_40 |   .2624216   .2080745     1.26   0.207    -.1456955    .6705386
 _Isector_41 |   .5358759   .0438359    12.22   0.000     .4498962    .6218556
 _Isector_42 |   .5032342   .1301692     3.87   0.000     .2479204    .7585479
 _Isector_43 |          0  (omitted)
 _Isector_44 |          0  (omitted)
 _Isector_45 |          0  (omitted)
 _Isector_46 |          0  (omitted)
   _Ieduc_32 |          0  (omitted)
   _Ieduc_33 |          0  (omitted)
   _Ieduc_35 |  -.0458296   .0268646    -1.71   0.088    -.0985219    .0068626
   _Ieduc_36 |          0  (omitted)
   _Ieduc_37 |          0  (omitted)
   _Ieduc_38 |          0  (omitted)
   _Ieduc_53 |          0  (omitted)
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |   .3803149   .4185878     0.91   0.364    -.4407026    1.201332
   _Ieduc_56 |          0  (omitted)
   _Ieduc_57 |          0  (omitted)
   _Ieduc_63 |          0  (omitted)
   _Ieduc_64 |          0  (omitted)
   _Ieduc_65 |   .6016172   .3227008     1.86   0.062    -.0313276    1.234562
   _Ieduc_66 |          0  (omitted)
   _Ieduc_72 |          0  (omitted)
   _Ieduc_73 |          0  (omitted)
   _Ieduc_74 |   .6764166   .3171594     2.13   0.033     .0543407    1.298492
   _Ieduc_75 |   .6377558   .2520512     2.53   0.011      .143383    1.132129
   _Ieduc_76 |          0  (omitted)
   _Ieduc_77 |          0  (omitted)
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |   .6881134   .3212031     2.14   0.032     .0581061    1.318121
   _Ieduc_85 |   .6446619   .2791627     2.31   0.021     .0971126    1.192211
   _Ieduc_86 |          0  (omitted)
   _Ieduc_87 |          0  (omitted)
   _Ieduc_99 |   .2653837   .1186888     2.24   0.025     .0325876    .4981798
   _Inuts2_2 |  -.3710887   .2210772    -1.68   0.093    -.8047092    .0625319
   _Inuts2_3 |  -.1429851   .1381174    -1.04   0.301    -.4138885    .1279182
   _Inuts2_4 |  -.2214022   .1750664    -1.26   0.206    -.5647771    .1219727
   _Inuts2_5 |  -.1005968    .142171    -0.71   0.479    -.3794508    .1782572
   _Inuts2_6 |          0  (omitted)
        pats |   .0227476   .0151506     1.50   0.133    -.0069688     .052464
     lagpats |  -.0158305   .0252045    -0.63   0.530    -.0652665    .0336055
     lagpat2 |  -.0365537   .0247369    -1.48   0.140    -.0850725    .0119651
     lagpat3 |   .0031182   .0224731     0.14   0.890    -.0409605    .0471968
     lagpat4 |   .0341119    .022886     1.49   0.136    -.0107767    .0790005
     lagpat5 |   .0407157   .0228973     1.78   0.076     -.004195    .0856264
     lagpat6 |    .040632   .0200459     2.03   0.043     .0013141      .07995
    firmwage |   .3483685   .0640104     5.44   0.000     .2228186    .4739184
       _cons |    4.48617   1.272011     3.53   0.000     1.991249    6.981091
-------------+----------------------------------------------------------------
     sigma_u |  .53859861
     sigma_e |  .38682192
         rho |  .65971229   (fraction of variance due to u_i)
------------------------------------------------------------------------------

.  /* TABLE 6 col 2 */
> xi: xtreg logwage $expl_17 firmwage, fe robust  ;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: female omitted because of collinearity
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Ivuosi_1996 omitted because of collinearity
note: _Ivuosi_1997 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_2 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_7 omitted because of collinearity
note: _Isector_8 omitted because of collinearity
note: _Isector_9 omitted because of collinearity
note: _Isector_11 omitted because of collinearity
note: _Isector_15 omitted because of collinearity
note: _Isector_28 omitted because of collinearity
note: _Isector_30 omitted because of collinearity
note: _Isector_31 omitted because of collinearity
note: _Isector_32 omitted because of collinearity
note: _Isector_33 omitted because of collinearity
note: _Isector_34 omitted because of collinearity
note: _Isector_36 omitted because of collinearity
note: _Isector_37 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Isector_44 omitted because of collinearity
note: _Isector_45 omitted because of collinearity
note: _Isector_46 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_64 omitted because of collinearity
note: _Ieduc_66 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_73 omitted because of collinearity
note: _Ieduc_76 omitted because of collinearity
note: _Ieduc_77 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity
note: _Ieduc_86 omitted because of collinearity
note: _Ieduc_87 omitted because of collinearity
note: _Inuts2_6 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =      4450
Group variable: id                              Number of groups   =      1656

R-sq:  within  = 0.0993                         Obs per group: min =         1
       between = 0.0734                                        avg =       2.7
       overall = 0.0793                                        max =         3

                                                F(41,1655)         =         .
corr(u_i, Xb)  = -0.3752                        Prob > F           =         .

                                  (Std. Err. adjusted for 1656 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .0380468   .0495582     0.77   0.443    -.0591566    .1352501
        age2 |  -.0003182   .0005125    -0.62   0.535    -.0013233     .000687
      tenure |   .0073346   .0019851     3.69   0.000      .003441    .0112282
      female |          0  (omitted)
      months |   .0035379   .0040643     0.87   0.384    -.0044338    .0115096
         emp |   .0022889   .0008217     2.79   0.005     .0006773    .0039005
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |          0  (omitted)
_Ivuosi_1995 |          0  (omitted)
_Ivuosi_1996 |          0  (omitted)
_Ivuosi_1997 |          0  (omitted)
_Ivuosi_1998 |   .0397919    .010355     3.84   0.000     .0194817    .0601021
_Ivuosi_1999 |          0  (omitted)
  _Isector_2 |          0  (omitted)
  _Isector_3 |          0  (omitted)
  _Isector_4 |   .0339484   .0169288     2.01   0.045     .0007443    .0671526
  _Isector_5 |  -.8979557   .1996636    -4.50   0.000    -1.289576   -.5063359
  _Isector_6 |          0  (omitted)
  _Isector_7 |          0  (omitted)
  _Isector_8 |          0  (omitted)
  _Isector_9 |          0  (omitted)
 _Isector_10 |   -.966543    .232444    -4.16   0.000    -1.422458   -.5106277
 _Isector_11 |          0  (omitted)
 _Isector_12 |  -.7055279   .1228789    -5.74   0.000    -.9465424   -.4645134
 _Isector_13 |  -.4860233   .1322775    -3.67   0.000    -.7454721   -.2265745
 _Isector_14 |  -.7191438   .1799117    -4.00   0.000    -1.072022   -.3662654
 _Isector_15 |          0  (omitted)
 _Isector_16 |  -.7471857   .1474074    -5.07   0.000     -1.03631   -.4580611
 _Isector_17 |  -.2303567   .2519452    -0.91   0.361    -.7245216    .2638083
 _Isector_18 |  -.6598449    .147996    -4.46   0.000    -.9501239   -.3695658
 _Isector_19 |  -.5075074   .2347324    -2.16   0.031    -.9679111   -.0471036
 _Isector_20 |  -.5500868   .1723813    -3.19   0.001    -.8881953   -.2119784
 _Isector_21 |  -.7589568   .2560928    -2.96   0.003    -1.261257   -.2566567
 _Isector_22 |  -.6102462   .1552942    -3.93   0.000      -.91484   -.3056525
 _Isector_23 |  -.5993434   .2023791    -2.96   0.003    -.9962895   -.2023973
 _Isector_24 |   -.683933   .1868702    -3.66   0.000     -1.05046    -.317406
 _Isector_25 |  -.3703656   .1044968    -3.54   0.000    -.5753255   -.1654057
 _Isector_26 |  -.6867367   .1389975    -4.94   0.000    -.9593662   -.4141073
 _Isector_27 |  -.7186031   .1442448    -4.98   0.000    -1.001525   -.4356816
 _Isector_28 |          0  (omitted)
 _Isector_29 |  -.7007807   .1744842    -4.02   0.000    -1.043014   -.3585476
 _Isector_30 |          0  (omitted)
 _Isector_31 |          0  (omitted)
 _Isector_32 |          0  (omitted)
 _Isector_33 |          0  (omitted)
 _Isector_34 |          0  (omitted)
 _Isector_35 |  -.7991543   .2460833    -3.25   0.001    -1.281822    -.316487
 _Isector_36 |          0  (omitted)
 _Isector_37 |          0  (omitted)
 _Isector_38 |  -.6465106   .1218571    -5.31   0.000     -.885521   -.4075001
 _Isector_39 |  -1.126788   .2029213    -5.55   0.000    -1.524798    -.728779
 _Isector_40 |  -.8585572   .2516225    -3.41   0.001    -1.352089   -.3650253
 _Isector_41 |  -.6292142   .1685108    -3.73   0.000    -.9597311   -.2986973
 _Isector_42 |  -.6525924    .116378    -5.61   0.000    -.8808559   -.4243288
 _Isector_43 |          0  (omitted)
 _Isector_44 |          0  (omitted)
 _Isector_45 |          0  (omitted)
 _Isector_46 |          0  (omitted)
   _Ieduc_32 |          0  (omitted)
   _Ieduc_33 |          0  (omitted)
   _Ieduc_35 |  -.0308286   .0174492    -1.77   0.077    -.0650535    .0033964
   _Ieduc_36 |          0  (omitted)
   _Ieduc_37 |          0  (omitted)
   _Ieduc_38 |          0  (omitted)
   _Ieduc_53 |          0  (omitted)
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |   .3869837   .4076103     0.95   0.343    -.4125025     1.18647
   _Ieduc_56 |          0  (omitted)
   _Ieduc_57 |          0  (omitted)
   _Ieduc_63 |          0  (omitted)
   _Ieduc_64 |          0  (omitted)
   _Ieduc_65 |   .6274919   .3268601     1.92   0.055    -.0136109    1.268595
   _Ieduc_66 |          0  (omitted)
   _Ieduc_72 |          0  (omitted)
   _Ieduc_73 |          0  (omitted)
   _Ieduc_74 |    .701771   .3220223     2.18   0.029      .070157    1.333385
   _Ieduc_75 |   .6455862   .2563413     2.52   0.012     .1427988    1.148374
   _Ieduc_76 |          0  (omitted)
   _Ieduc_77 |          0  (omitted)
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |   .7090739   .3292572     2.15   0.031     .0632695    1.354878
   _Ieduc_85 |   .6681933    .282498     2.37   0.018     .1141021    1.222285
   _Ieduc_86 |          0  (omitted)
   _Ieduc_87 |          0  (omitted)
   _Ieduc_99 |   .2689797   .1178455     2.28   0.023     .0378378    .5001217
   _Inuts2_2 |  -.3702587   .2193026    -1.69   0.092    -.8003986    .0598811
   _Inuts2_3 |  -.1545833   .1373091    -1.13   0.260     -.423901    .1147345
   _Inuts2_4 |  -.1991343    .172255    -1.16   0.248     -.536995    .1387264
   _Inuts2_5 |  -.0552903    .148087    -0.37   0.709    -.3457479    .2351672
   _Inuts2_6 |          0  (omitted)
        pats |   .0300487   .0143652     2.09   0.037     .0018727    .0582246
     lagcits |  -.0009555   .0016038    -0.60   0.551    -.0041013    .0021903
     lagcit2 |   .0004729   .0018075     0.26   0.794    -.0030723    .0040181
     lagcit3 |   .0025525   .0019922     1.28   0.200    -.0013551    .0064601
     lagcit4 |   .0021625   .0018786     1.15   0.250    -.0015221    .0058471
     lagcit5 |   .0028889   .0016419     1.76   0.079    -.0003315    .0061094
     lagcit6 |   .0038245   .0026481     1.44   0.149    -.0013694    .0090185
    firmwage |   .3416418   .0646741     5.28   0.000     .2147901    .4684934
       _cons |   6.160971   1.302728     4.73   0.000     3.605803    8.716138
-------------+----------------------------------------------------------------
     sigma_u |   .5244591
     sigma_e |  .38651988
         rho |  .64802481   (fraction of variance due to u_i)
------------------------------------------------------------------------------

.  /* TABLE 7 col 2 */
> xi: xtreg logwage $expl_0 $expl_cg firmwage, fe robust  ;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: female omitted because of collinearity
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Ivuosi_1996 omitted because of collinearity
note: _Ivuosi_1997 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_2 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_7 omitted because of collinearity
note: _Isector_8 omitted because of collinearity
note: _Isector_9 omitted because of collinearity
note: _Isector_11 omitted because of collinearity
note: _Isector_15 omitted because of collinearity
note: _Isector_28 omitted because of collinearity
note: _Isector_31 omitted because of collinearity
note: _Isector_32 omitted because of collinearity
note: _Isector_33 omitted because of collinearity
note: _Isector_34 omitted because of collinearity
note: _Isector_36 omitted because of collinearity
note: _Isector_37 omitted because of collinearity
note: _Isector_39 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Isector_44 omitted because of collinearity
note: _Isector_45 omitted because of collinearity
note: _Isector_46 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_64 omitted because of collinearity
note: _Ieduc_66 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_73 omitted because of collinearity
note: _Ieduc_76 omitted because of collinearity
note: _Ieduc_77 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity
note: _Ieduc_86 omitted because of collinearity
note: _Ieduc_87 omitted because of collinearity
note: _Inuts2_6 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =      4450
Group variable: id                              Number of groups   =      1656

R-sq:  within  = 0.1063                         Obs per group: min =         1
       between = 0.0587                                        avg =       2.7
       overall = 0.0677                                        max =         3

                                                F(69,1655)         =         .
corr(u_i, Xb)  = -0.4376                        Prob > F           =         .

                                  (Std. Err. adjusted for 1656 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .0545695   .0491696     1.11   0.267    -.0418717    .1510107
        age2 |  -.0004375   .0005123    -0.85   0.393    -.0014423    .0005673
      tenure |   .0079353   .0021653     3.66   0.000     .0036884    .0121823
      female |          0  (omitted)
      months |   .0051559   .0042203     1.22   0.222    -.0031219    .0134336
         emp |   .0023644    .000834     2.84   0.005     .0007287    .0040002
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |          0  (omitted)
_Ivuosi_1995 |          0  (omitted)
_Ivuosi_1996 |          0  (omitted)
_Ivuosi_1997 |          0  (omitted)
_Ivuosi_1998 |   .0386688   .0105709     3.66   0.000      .017935    .0594025
_Ivuosi_1999 |          0  (omitted)
  _Isector_2 |          0  (omitted)
  _Isector_3 |          0  (omitted)
  _Isector_4 |   .0009175   .0513515     0.02   0.986    -.0998032    .1016383
  _Isector_5 |   .2155979   .2295035     0.94   0.348      -.23455    .6657458
  _Isector_6 |          0  (omitted)
  _Isector_7 |          0  (omitted)
  _Isector_8 |          0  (omitted)
  _Isector_9 |          0  (omitted)
 _Isector_10 |   .1619056   .2502376     0.65   0.518      -.32891    .6527211
 _Isector_11 |          0  (omitted)
 _Isector_12 |   .4609977    .146123     3.15   0.002     .1743923     .747603
 _Isector_13 |   .6698547   .1262636     5.31   0.000     .4222016    .9175079
 _Isector_14 |   .4257424   .1800446     2.36   0.018     .0726033    .7788816
 _Isector_15 |          0  (omitted)
 _Isector_16 |   .4158124   .1670426     2.49   0.013     .0881753    .7434495
 _Isector_17 |   .9586241    .266411     3.60   0.000      .436086    1.481162
 _Isector_18 |   .4931187   .1516304     3.25   0.001     .1957112    .7905263
 _Isector_19 |   .6662137   .2134793     3.12   0.002     .2474958    1.084932
 _Isector_20 |   .6429588   .1658621     3.88   0.000     .3176372    .9682804
 _Isector_21 |   .4100605   .2317628     1.77   0.077    -.0445187    .8646397
 _Isector_22 |    .553543    .145275     3.81   0.000     .2686009    .8384851
 _Isector_23 |   .5250632   .1967096     2.67   0.008     .1392372    .9108891
 _Isector_24 |   .4697181   .2036128     2.31   0.021     .0703523    .8690838
 _Isector_25 |   .8035531    .135616     5.93   0.000     .5375561     1.06955
 _Isector_26 |   .5112921   .1563534     3.27   0.001     .2046207    .8179634
 _Isector_27 |   .3993667   .1631764     2.45   0.014     .0793128    .7194206
 _Isector_28 |          0  (omitted)
 _Isector_29 |   .4574214   .1783368     2.56   0.010      .107632    .8072109
 _Isector_30 |   1.198822    .213143     5.62   0.000     .7807639    1.616881
 _Isector_31 |          0  (omitted)
 _Isector_32 |          0  (omitted)
 _Isector_33 |          0  (omitted)
 _Isector_34 |          0  (omitted)
 _Isector_35 |   .3247929   .2252731     1.44   0.150    -.1170574    .7666432
 _Isector_36 |          0  (omitted)
 _Isector_37 |          0  (omitted)
 _Isector_38 |   .5061506   .1580459     3.20   0.001     .1961595    .8161416
 _Isector_39 |          0  (omitted)
 _Isector_40 |   .3356753   .2607307     1.29   0.198    -.1757215    .8470722
 _Isector_41 |   .5256321   .0884501     5.94   0.000     .3521461     .699118
 _Isector_42 |   .5105664   .1497762     3.41   0.001     .2167956    .8043372
 _Isector_43 |          0  (omitted)
 _Isector_44 |          0  (omitted)
 _Isector_45 |          0  (omitted)
 _Isector_46 |          0  (omitted)
   _Ieduc_32 |          0  (omitted)
   _Ieduc_33 |          0  (omitted)
   _Ieduc_35 |   .0614324   .0884885     0.69   0.488    -.1121289    .2349936
   _Ieduc_36 |          0  (omitted)
   _Ieduc_37 |          0  (omitted)
   _Ieduc_38 |          0  (omitted)
   _Ieduc_53 |          0  (omitted)
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |   .4019361   .4470558     0.90   0.369    -.4749184    1.278791
   _Ieduc_56 |          0  (omitted)
   _Ieduc_57 |          0  (omitted)
   _Ieduc_63 |          0  (omitted)
   _Ieduc_64 |          0  (omitted)
   _Ieduc_65 |    .615964   .3607619     1.71   0.088    -.0916338    1.323562
   _Ieduc_66 |          0  (omitted)
   _Ieduc_72 |          0  (omitted)
   _Ieduc_73 |          0  (omitted)
   _Ieduc_74 |   .7340238     .35709     2.06   0.040     .0336281    1.434419
   _Ieduc_75 |   .6482527   .3011346     2.15   0.031     .0576078    1.238898
   _Ieduc_76 |          0  (omitted)
   _Ieduc_77 |          0  (omitted)
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |   .7722451   .3703696     2.09   0.037     .0458028    1.498687
   _Ieduc_85 |   .6619993   .3247615     2.04   0.042     .0250126    1.298986
   _Ieduc_86 |          0  (omitted)
   _Ieduc_87 |          0  (omitted)
   _Ieduc_99 |   .3779788    .152936     2.47   0.014     .0780104    .6779471
   _Inuts2_2 |  -.3731974   .2220207    -1.68   0.093    -.8086685    .0622738
   _Inuts2_3 |  -.1426252   .1498188    -0.95   0.341    -.4364795    .1512291
   _Inuts2_4 |  -.2448205   .1729296    -1.42   0.157    -.5840044    .0943634
   _Inuts2_5 |  -.0570008   .1625925    -0.35   0.726    -.3759095    .2619078
   _Inuts2_6 |          0  (omitted)
      nocits |   .0114698   .0342485     0.33   0.738    -.0557051    .0786447
      cits10 |  -.0392228   .0286497    -1.37   0.171    -.0954164    .0169707
      cits20 |   -.007292   .0576335    -0.13   0.899    -.1203342    .1057501
      cits30 |  -.0822871   .0904218    -0.91   0.363    -.2596403    .0950661
     topcits |   .1198759   .0979909     1.22   0.221    -.0723233    .3120752
      lagnoc |  -.0275175   .0476096    -0.58   0.563    -.1208988    .0658638
      lag10c |  -.0408032   .0366819    -1.11   0.266     -.112751    .0311445
      lag20c |  -.0513744   .0605196    -0.85   0.396    -.1700775    .0673286
      lag30c |   -.118008   .1389336    -0.85   0.396    -.3905121    .1544961
     lagtopc |   -.009296   .0983343    -0.09   0.925    -.2021687    .1835767
     lagnoc2 |  -.0908953   .0727198    -1.25   0.211    -.2335278    .0517371
     lag10c2 |  -.0606424   .0427005    -1.42   0.156    -.1443951    .0231103
     lag20c2 |  -.0853428   .0577228    -1.48   0.139    -.1985602    .0278746
     lag30c2 |  -.2046692   .1302054    -1.57   0.116    -.4600539    .0507155
    lagtopc2 |   .0528835   .1376538     0.38   0.701    -.2171104    .3228775
     lagnoc3 |   -.027885   .0570471    -0.49   0.625    -.1397772    .0840071
     lag10c3 |  -.0287392   .0314383    -0.91   0.361    -.0904022    .0329237
     lag20c3 |  -.0506499   .0706216    -0.72   0.473     -.189167    .0878672
     lag30c3 |  -.0701409   .1362788    -0.51   0.607     -.337438    .1971562
     lagtop3 |   .2005614   .1255054     1.60   0.110    -.0456046    .4467274
     lagnoc4 |  -.0475686   .0595169    -0.80   0.424     -.164305    .0691678
     lag10c4 |  -.0126763   .0335821    -0.38   0.706    -.0785441    .0531915
     lag20c4 |  -.0891393   .0644286    -1.38   0.167    -.2155096    .0372309
     lag30c4 |  -.0263793   .1246542    -0.21   0.832    -.2708759    .2181173
    lagtopc4 |   .2674617   .1241205     2.15   0.031      .024012    .5109114
     lagnoc5 |   -.023679   .0573141    -0.41   0.680    -.1360947    .0887367
     lag10c5 |   .0311804    .030929     1.01   0.314    -.0294837    .0918444
     lag20c5 |   .0125997   .0632464     0.20   0.842    -.1114518    .1366511
     lag30c5 |  -.0098282   .1333801    -0.07   0.941    -.2714396    .2517832
    lagtopc5 |    .256661   .1258816     2.04   0.042     .0097571    .5035649
     lagnoc6 |  -.0432897   .0572607    -0.76   0.450    -.1556007    .0690213
     lag10c6 |   .0144439   .0266571     0.54   0.588    -.0378413     .066729
     lag20c6 |   .0197837   .0297133     0.67   0.506    -.0384959    .0780634
     lag30c6 |   .0445397   .0566226     0.79   0.432    -.0665197    .1555992
    lagtopc6 |   .2996865   .1726519     1.74   0.083    -.0389526    .6383256
    firmwage |   .3456162   .0645734     5.35   0.000      .218962    .4722704
       _cons |   4.512078   1.283808     3.51   0.000     1.994018    7.030138
-------------+----------------------------------------------------------------
     sigma_u |  .54664195
     sigma_e |  .38700126
         rho |  .66612978   (fraction of variance due to u_i)
------------------------------------------------------------------------------

.  /* TABLE 7 col 2 */
> 
> *firm patents;
. xi: xtreg logwage $expl_7 firm_patcount lagfats lagfat2 lagfat3 lagfat4 lagfat5 lagfat6, fe robu
> st  ;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: female omitted because of collinearity
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Ivuosi_1996 omitted because of collinearity
note: _Ivuosi_1997 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_2 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_7 omitted because of collinearity
note: _Isector_8 omitted because of collinearity
note: _Isector_11 omitted because of collinearity
note: _Isector_15 omitted because of collinearity
note: _Isector_23 omitted because of collinearity
note: _Isector_28 omitted because of collinearity
note: _Isector_32 omitted because of collinearity
note: _Isector_33 omitted because of collinearity
note: _Isector_34 omitted because of collinearity
note: _Isector_36 omitted because of collinearity
note: _Isector_37 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Isector_45 omitted because of collinearity
note: _Isector_46 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_64 omitted because of collinearity
note: _Ieduc_66 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_73 omitted because of collinearity
note: _Ieduc_76 omitted because of collinearity
note: _Ieduc_77 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity
note: _Ieduc_86 omitted because of collinearity
note: _Ieduc_87 omitted because of collinearity
note: _Inuts2_6 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =      4938
Group variable: id                              Number of groups   =      1789

R-sq:  within  = 0.0985                         Obs per group: min =         1
       between = 0.0820                                        avg =       2.8
       overall = 0.0768                                        max =         3

                                                F(51,1788)         =         .
corr(u_i, Xb)  = -0.6366                        Prob > F           =         .

                                   (Std. Err. adjusted for 1789 clusters in id)
-------------------------------------------------------------------------------
              |               Robust
      logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
--------------+----------------------------------------------------------------
          age |   .1128697   .0434375     2.60   0.009     .0276761    .1980633
         age2 |  -.0008372   .0004446    -1.88   0.060    -.0017092    .0000349
       tenure |   .0079071   .0021014     3.76   0.000     .0037856    .0120285
       female |          0  (omitted)
       months |    .007327   .0037373     1.96   0.050    -2.97e-06     .014657
          emp |  -.0008836   .0009495    -0.93   0.352    -.0027458    .0009785
 _Ivuosi_1992 |          0  (omitted)
 _Ivuosi_1993 |          0  (omitted)
 _Ivuosi_1994 |          0  (omitted)
 _Ivuosi_1995 |          0  (omitted)
 _Ivuosi_1996 |          0  (omitted)
 _Ivuosi_1997 |          0  (omitted)
 _Ivuosi_1998 |   .0101641   .0094213     1.08   0.281    -.0083138    .0286421
 _Ivuosi_1999 |          0  (omitted)
   _Isector_2 |          0  (omitted)
   _Isector_3 |          0  (omitted)
   _Isector_4 |   .0244711   .0197556     1.24   0.216    -.0142754    .0632176
   _Isector_5 |  -.1189571   .2134129    -0.56   0.577     -.537522    .2996078
   _Isector_6 |          0  (omitted)
   _Isector_7 |          0  (omitted)
   _Isector_8 |          0  (omitted)
   _Isector_9 |   .1535187   .2281901     0.67   0.501    -.2940288    .6010661
  _Isector_10 |   .1652063   .1815078     0.91   0.363    -.1907835    .5211961
  _Isector_11 |          0  (omitted)
  _Isector_12 |  -.0359612    .159351    -0.23   0.821    -.3484949    .2765725
  _Isector_13 |   .1838185   .1291514     1.42   0.155    -.0694851    .4371221
  _Isector_14 |    .029373   .1655134     0.18   0.859    -.2952471    .3539932
  _Isector_15 |          0  (omitted)
  _Isector_16 |   .0412083   .1561069     0.26   0.792    -.2649628    .3473795
  _Isector_17 |   .1123199   .2278931     0.49   0.622    -.3346449    .5592848
  _Isector_18 |    .032775   .1479651     0.22   0.825    -.2574277    .3229776
  _Isector_19 |   .1380305   .2694151     0.51   0.608    -.3903712    .6664322
  _Isector_20 |   .1180436   .1610113     0.73   0.464    -.1977464    .4338337
  _Isector_21 |  -.1641979   .2538189    -0.65   0.518    -.6620108    .3336149
  _Isector_22 |   .0797375   .1461837     0.55   0.586    -.2069713    .3664464
  _Isector_23 |          0  (omitted)
  _Isector_24 |  -.0684911   .1611936    -0.42   0.671    -.3846388    .2476566
  _Isector_25 |   .1797177   .1314364     1.37   0.172    -.0780674    .4375027
  _Isector_26 |   .1553054   .1403232     1.11   0.269    -.1199094    .4305202
  _Isector_27 |   .1516669   .1709604     0.89   0.375    -.1836362    .4869701
  _Isector_28 |          0  (omitted)
  _Isector_29 |   .0280805   .1541301     0.18   0.855    -.2742136    .3303746
  _Isector_30 |   .3170709   .1423404     2.23   0.026     .0378998     .596242
  _Isector_31 |   .5462715   .1444606     3.78   0.000     .2629421    .8296008
  _Isector_32 |          0  (omitted)
  _Isector_33 |          0  (omitted)
  _Isector_34 |          0  (omitted)
  _Isector_35 |   .2166525   .2825908     0.77   0.443    -.3375906    .7708955
  _Isector_36 |          0  (omitted)
  _Isector_37 |          0  (omitted)
  _Isector_38 |   .2919652   .1640351     1.78   0.075    -.0297555    .6136858
  _Isector_39 |   .1498375   .1607559     0.93   0.351    -.1654518    .4651267
  _Isector_40 |  -.0251637   .2173099    -0.12   0.908    -.4513719    .4010444
  _Isector_41 |   .1092655   .1363891     0.80   0.423    -.1582333    .3767643
  _Isector_42 |   .1090111   .1409816     0.77   0.439    -.1674948    .3855171
  _Isector_43 |          0  (omitted)
  _Isector_44 |   2.265556   .8650712     2.62   0.009     .5688994    3.962213
  _Isector_45 |          0  (omitted)
  _Isector_46 |          0  (omitted)
    _Ieduc_32 |          0  (omitted)
    _Ieduc_33 |          0  (omitted)
    _Ieduc_35 |   .0411852   .0686058     0.60   0.548    -.0933707    .1757411
    _Ieduc_36 |          0  (omitted)
    _Ieduc_37 |          0  (omitted)
    _Ieduc_38 |          0  (omitted)
    _Ieduc_53 |          0  (omitted)
    _Ieduc_54 |          0  (omitted)
    _Ieduc_55 |   1.263314   .4631182     2.73   0.006     .3550037    2.171623
    _Ieduc_56 |          0  (omitted)
    _Ieduc_57 |          0  (omitted)
    _Ieduc_63 |          0  (omitted)
    _Ieduc_64 |          0  (omitted)
    _Ieduc_65 |   1.286068   .3895675     3.30   0.001     .5220123    2.050123
    _Ieduc_66 |          0  (omitted)
    _Ieduc_72 |          0  (omitted)
    _Ieduc_73 |          0  (omitted)
    _Ieduc_74 |   1.424601    .377614     3.77   0.000     .6839903    2.165213
    _Ieduc_75 |   1.424507   .3564452     4.00   0.000      .725414      2.1236
    _Ieduc_76 |          0  (omitted)
    _Ieduc_77 |          0  (omitted)
    _Ieduc_83 |          0  (omitted)
    _Ieduc_84 |   1.366134   .3797122     3.60   0.000      .621408    2.110861
    _Ieduc_85 |   1.455113   .3728432     3.90   0.000     .7238592    2.186368
    _Ieduc_86 |          0  (omitted)
    _Ieduc_87 |          0  (omitted)
    _Ieduc_99 |   .2611006   .1254192     2.08   0.038     .0151169    .5070843
    _Inuts2_2 |  -.2731422    .174602    -1.56   0.118    -.6155877    .0693033
    _Inuts2_3 |  -.1184057    .110841    -1.07   0.286    -.3357973    .0989859
    _Inuts2_4 |  -.1440638    .146555    -0.98   0.326    -.4315008    .1433732
    _Inuts2_5 |  -.0524031   .1189839    -0.44   0.660    -.2857653    .1809591
    _Inuts2_6 |          0  (omitted)
         pats |   .0168941   .0146744     1.15   0.250    -.0118866    .0456749
      lagpats |  -.0118216   .0232657    -0.51   0.611    -.0574525    .0338093
      lagpat2 |  -.0264946     .02309    -1.15   0.251    -.0717809    .0187917
      lagpat3 |   .0107362   .0208903     0.51   0.607    -.0302358    .0517081
      lagpat4 |   .0343078   .0206233     1.66   0.096    -.0061406    .0747561
      lagpat5 |   .0517609   .0213104     2.43   0.015     .0099649    .0935568
      lagpat6 |   .0503095   .0184655     2.72   0.007     .0140933    .0865257
firm_patcount |   .0034964   .0013787     2.54   0.011     .0007925    .0062004
      lagfats |  -.0011752   .0024635    -0.48   0.633    -.0060068    .0036564
      lagfat2 |  -.0001331   .0017986    -0.07   0.941    -.0036606    .0033945
      lagfat3 |   .0000485   .0033665     0.01   0.988    -.0065542    .0066513
      lagfat4 |   .0127861   .0040444     3.16   0.002     .0048539    .0207183
      lagfat5 |  -.0026412    .004599    -0.57   0.566    -.0116611    .0063787
      lagfat6 |   .0032808   .0073727     0.44   0.656    -.0111792    .0177409
        _cons |   6.053181   .9795521     6.18   0.000     4.131993    7.974368
--------------+----------------------------------------------------------------
      sigma_u |  .65936508
      sigma_e |  .37496263
          rho |  .75563621   (fraction of variance due to u_i)
-------------------------------------------------------------------------------

.  /* TABLE 6  col 1*/
>  
> *firm citations;
. xi: xtreg logwage $expl_17 firm_citcount lagfits lagfit2 lagfit3 lagfit4 lagfit5 lagfit6, fe rob
> ust  ;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: female omitted because of collinearity
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Ivuosi_1996 omitted because of collinearity
note: _Ivuosi_1997 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_2 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_7 omitted because of collinearity
note: _Isector_8 omitted because of collinearity
note: _Isector_11 omitted because of collinearity
note: _Isector_15 omitted because of collinearity
note: _Isector_23 omitted because of collinearity
note: _Isector_28 omitted because of collinearity
note: _Isector_32 omitted because of collinearity
note: _Isector_33 omitted because of collinearity
note: _Isector_34 omitted because of collinearity
note: _Isector_36 omitted because of collinearity
note: _Isector_37 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Isector_45 omitted because of collinearity
note: _Isector_46 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_64 omitted because of collinearity
note: _Ieduc_66 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_73 omitted because of collinearity
note: _Ieduc_76 omitted because of collinearity
note: _Ieduc_77 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity
note: _Ieduc_86 omitted because of collinearity
note: _Ieduc_87 omitted because of collinearity
note: _Inuts2_6 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =      4938
Group variable: id                              Number of groups   =      1789

R-sq:  within  = 0.1045                         Obs per group: min =         1
       between = 0.1005                                        avg =       2.8
       overall = 0.0948                                        max =         3

                                                F(51,1788)         =         .
corr(u_i, Xb)  = -0.6301                        Prob > F           =         .

                                   (Std. Err. adjusted for 1789 clusters in id)
-------------------------------------------------------------------------------
              |               Robust
      logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
--------------+----------------------------------------------------------------
          age |   .0763568   .0430906     1.77   0.077    -.0081563      .16087
         age2 |   -.000528   .0004457    -1.18   0.236    -.0014022    .0003463
       tenure |   .0076243   .0020272     3.76   0.000     .0036483    .0116004
       female |          0  (omitted)
       months |   .0062517   .0043451     1.44   0.150    -.0022703    .0147736
          emp |  -.0010425   .0009179    -1.14   0.256    -.0028427    .0007577
 _Ivuosi_1992 |          0  (omitted)
 _Ivuosi_1993 |          0  (omitted)
 _Ivuosi_1994 |          0  (omitted)
 _Ivuosi_1995 |          0  (omitted)
 _Ivuosi_1996 |          0  (omitted)
 _Ivuosi_1997 |          0  (omitted)
 _Ivuosi_1998 |   .0113207   .0122252     0.93   0.355    -.0126564    .0352978
 _Ivuosi_1999 |          0  (omitted)
   _Isector_2 |          0  (omitted)
   _Isector_3 |          0  (omitted)
   _Isector_4 |   .0235344   .0170174     1.38   0.167    -.0098416    .0569104
   _Isector_5 |  -.0875931   .2195218    -0.40   0.690    -.5181394    .3429533
   _Isector_6 |          0  (omitted)
   _Isector_7 |          0  (omitted)
   _Isector_8 |          0  (omitted)
   _Isector_9 |   .2116987   .2158508     0.98   0.327    -.2116476     .635045
  _Isector_10 |    .208106   .1880588     1.11   0.269    -.1607321    .5769442
  _Isector_11 |          0  (omitted)
  _Isector_12 |    .112811   .1470036     0.77   0.443    -.1755059    .4011279
  _Isector_13 |   .2139612   .1369089     1.56   0.118     -.054557    .4824794
  _Isector_14 |   .0568316   .1697794     0.33   0.738    -.2761554    .3898186
  _Isector_15 |          0  (omitted)
  _Isector_16 |   .0863181    .160908     0.54   0.592    -.2292693    .4019056
  _Isector_17 |   .1358826   .2338891     0.58   0.561    -.3228422    .5946074
  _Isector_18 |   .0699287   .1536464     0.46   0.649    -.2314167     .371274
  _Isector_19 |   .1975572   .2979077     0.66   0.507    -.3867267    .7818411
  _Isector_20 |   .1203169   .1662309     0.72   0.469    -.2057104    .4463443
  _Isector_21 |  -.2242365   .2468562    -0.91   0.364    -.7083934    .2599205
  _Isector_22 |   .1050096   .1512089     0.69   0.487    -.1915552    .4015744
  _Isector_23 |          0  (omitted)
  _Isector_24 |  -.0311395   .1661061    -0.19   0.851     -.356922    .2946429
  _Isector_25 |   .1910854   .1385727     1.38   0.168     -.080696    .4628669
  _Isector_26 |   .1872397   .1467312     1.28   0.202    -.1005429    .4750224
  _Isector_27 |   .2288607   .1759013     1.30   0.193    -.1161331    .5738545
  _Isector_28 |          0  (omitted)
  _Isector_29 |   .0444182   .1583379     0.28   0.779    -.2661286    .3549649
  _Isector_30 |   .3513565   .1482327     2.37   0.018     .0606289     .642084
  _Isector_31 |   .5359356   .1579228     3.39   0.001     .2262029    .8456684
  _Isector_32 |          0  (omitted)
  _Isector_33 |          0  (omitted)
  _Isector_34 |          0  (omitted)
  _Isector_35 |   .3114953   .3057549     1.02   0.308    -.2881793    .9111699
  _Isector_36 |          0  (omitted)
  _Isector_37 |          0  (omitted)
  _Isector_38 |   .2947576   .1641847     1.80   0.073    -.0272566    .6167718
  _Isector_39 |    .180638    .159088     1.14   0.256      -.13138     .492656
  _Isector_40 |   .0206504   .2171319     0.10   0.924    -.4052087    .4465094
  _Isector_41 |   .1335454   .1424232     0.94   0.349    -.1457881    .4128789
  _Isector_42 |   .1407304   .1461134     0.96   0.336    -.1458406    .4273015
  _Isector_43 |          0  (omitted)
  _Isector_44 |   2.231266   .8608881     2.59   0.010     .5428132    3.919718
  _Isector_45 |          0  (omitted)
  _Isector_46 |          0  (omitted)
    _Ieduc_32 |          0  (omitted)
    _Ieduc_33 |          0  (omitted)
    _Ieduc_35 |   .0496388   .0584106     0.85   0.396    -.0649214    .1641989
    _Ieduc_36 |          0  (omitted)
    _Ieduc_37 |          0  (omitted)
    _Ieduc_38 |          0  (omitted)
    _Ieduc_53 |          0  (omitted)
    _Ieduc_54 |          0  (omitted)
    _Ieduc_55 |   1.284133   .5053319     2.54   0.011     .2930294    2.275236
    _Ieduc_56 |          0  (omitted)
    _Ieduc_57 |          0  (omitted)
    _Ieduc_63 |          0  (omitted)
    _Ieduc_64 |          0  (omitted)
    _Ieduc_65 |    1.35434   .4434005     3.05   0.002     .4847019    2.223977
    _Ieduc_66 |          0  (omitted)
    _Ieduc_72 |          0  (omitted)
    _Ieduc_73 |          0  (omitted)
    _Ieduc_74 |   1.467694   .4203828     3.49   0.000     .6432003    2.292187
    _Ieduc_75 |   1.493133    .409252     3.65   0.000     .6904701    2.295795
    _Ieduc_76 |          0  (omitted)
    _Ieduc_77 |          0  (omitted)
    _Ieduc_83 |          0  (omitted)
    _Ieduc_84 |   1.412663   .4209125     3.36   0.001     .5871305    2.238195
    _Ieduc_85 |   1.535702   .4295729     3.57   0.000     .6931845     2.37822
    _Ieduc_86 |          0  (omitted)
    _Ieduc_87 |          0  (omitted)
    _Ieduc_99 |   .2442482   .1204192     2.03   0.043      .008071    .4804253
    _Inuts2_2 |  -.2792422   .1753918    -1.59   0.112    -.6232366    .0647522
    _Inuts2_3 |  -.1321564   .1128664    -1.17   0.242    -.3535202    .0892074
    _Inuts2_4 |    -.13685   .1468179    -0.93   0.351    -.4248027    .1511027
    _Inuts2_5 |  -.0133962   .1308912    -0.10   0.918     -.270112    .2433195
    _Inuts2_6 |          0  (omitted)
         pats |   .0224884   .0136444     1.65   0.099    -.0042722     .049249
      lagcits |  -.0008021   .0015721    -0.51   0.610    -.0038854    .0022811
      lagcit2 |   .0007503     .00177     0.42   0.672    -.0027212    .0042218
      lagcit3 |   .0027534   .0019435     1.42   0.157    -.0010585    .0065652
      lagcit4 |   .0026141   .0018638     1.40   0.161    -.0010414    .0062696
      lagcit5 |   .0035192   .0015892     2.21   0.027     .0004023     .006636
      lagcit6 |    .004474   .0025437     1.76   0.079    -.0005149    .0094629
firm_citcount |   6.84e-06   .0001034     0.07   0.947    -.0001961    .0002097
      lagfits |    .000206   .0001264     1.63   0.103    -.0000419    .0004538
      lagfit2 |   .0001492   .0001633     0.91   0.361    -.0001711    .0004695
      lagfit3 |   .0001637   .0002124     0.77   0.441    -.0002529    .0005804
      lagfit4 |   .0008597   .0002749     3.13   0.002     .0003205    .0013989
      lagfit5 |   -.001486   .0004274    -3.48   0.001    -.0023242   -.0006478
      lagfit6 |   .0010735   .0004591     2.34   0.019     .0001731     .001974
        _cons |   6.960706   .9730953     7.15   0.000     5.052182     8.86923
--------------+----------------------------------------------------------------
      sigma_u |   .6481657
      sigma_e |   .3737072
          rho |  .75051251   (fraction of variance due to u_i)
-------------------------------------------------------------------------------

.  /* TABLE 7 col 1 */
> xi: xtreg logwage $expl_0 $expl_cg firm_citcount lagfits lagfit2 lagfit3 lagfit4 lagfit5 lagfit6
> , fe robust  ;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: female omitted because of collinearity
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Ivuosi_1996 omitted because of collinearity
note: _Ivuosi_1997 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_2 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_7 omitted because of collinearity
note: _Isector_8 omitted because of collinearity
note: _Isector_11 omitted because of collinearity
note: _Isector_15 omitted because of collinearity
note: _Isector_23 omitted because of collinearity
note: _Isector_28 omitted because of collinearity
note: _Isector_32 omitted because of collinearity
note: _Isector_33 omitted because of collinearity
note: _Isector_34 omitted because of collinearity
note: _Isector_36 omitted because of collinearity
note: _Isector_37 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Isector_45 omitted because of collinearity
note: _Isector_46 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_64 omitted because of collinearity
note: _Ieduc_66 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_73 omitted because of collinearity
note: _Ieduc_76 omitted because of collinearity
note: _Ieduc_77 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity
note: _Ieduc_86 omitted because of collinearity
note: _Ieduc_87 omitted because of collinearity
note: _Inuts2_6 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =      4938
Group variable: id                              Number of groups   =      1789

R-sq:  within  = 0.1124                         Obs per group: min =         1
       between = 0.0942                                        avg =       2.8
       overall = 0.0903                                        max =         3

                                                F(80,1788)         =         .
corr(u_i, Xb)  = -0.6483                        Prob > F           =         .

                                   (Std. Err. adjusted for 1789 clusters in id)
-------------------------------------------------------------------------------
              |               Robust
      logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
--------------+----------------------------------------------------------------
          age |   .0902323    .042235     2.14   0.033     .0073971    .1730675
         age2 |  -.0006145   .0004431    -1.39   0.166    -.0014834    .0002545
       tenure |    .007985   .0021224     3.76   0.000     .0038222    .0121477
       female |          0  (omitted)
       months |   .0072948   .0043569     1.67   0.094    -.0012503    .0158399
          emp |   -.001094     .00094    -1.16   0.245    -.0029376    .0007496
 _Ivuosi_1992 |          0  (omitted)
 _Ivuosi_1993 |          0  (omitted)
 _Ivuosi_1994 |          0  (omitted)
 _Ivuosi_1995 |          0  (omitted)
 _Ivuosi_1996 |          0  (omitted)
 _Ivuosi_1997 |          0  (omitted)
 _Ivuosi_1998 |   .0084481   .0125117     0.68   0.500     -.016091    .0329872
 _Ivuosi_1999 |          0  (omitted)
   _Isector_2 |          0  (omitted)
   _Isector_3 |          0  (omitted)
   _Isector_4 |  -.0060283   .0499416    -0.12   0.904    -.1039784    .0919217
   _Isector_5 |  -.0995649   .2281764    -0.44   0.663    -.5470854    .3479555
   _Isector_6 |          0  (omitted)
   _Isector_7 |          0  (omitted)
   _Isector_8 |          0  (omitted)
   _Isector_9 |   .2223763   .2389197     0.93   0.352    -.2462149    .6909675
  _Isector_10 |   .2082758   .2024719     1.03   0.304    -.1888305    .6053822
  _Isector_11 |          0  (omitted)
  _Isector_12 |   .1403549   .1622266     0.87   0.387    -.1778189    .4585287
  _Isector_13 |   .2260753   .1497913     1.51   0.131    -.0677092    .5198598
  _Isector_14 |   .0474246   .1778955     0.27   0.790    -.3014803    .3963296
  _Isector_15 |          0  (omitted)
  _Isector_16 |   .0942774   .1722673     0.55   0.584     -.243589    .4321439
  _Isector_17 |   .1623716   .2451429     0.66   0.508    -.3184251    .6431684
  _Isector_18 |   .0844538   .1640697     0.51   0.607    -.2373349    .4062424
  _Isector_19 |   .2380444   .3041276     0.78   0.434    -.3584385    .8345272
  _Isector_20 |    .175264   .1730113     1.01   0.311    -.1640617    .5145897
  _Isector_21 |   -.210887   .2549916    -0.83   0.408    -.7109998    .2892259
  _Isector_22 |    .125686   .1650462     0.76   0.446    -.1980178    .4493898
  _Isector_23 |          0  (omitted)
  _Isector_24 |  -.0268096    .175806    -0.15   0.879    -.3716165    .3179973
  _Isector_25 |   .1970573   .1555919     1.27   0.205    -.1081038    .5022184
  _Isector_26 |   .2440865   .1612708     1.51   0.130    -.0722126    .5603856
  _Isector_27 |   .2371161   .1846951     1.28   0.199    -.1251249    .5993572
  _Isector_28 |          0  (omitted)
  _Isector_29 |   .0565662   .1683784     0.34   0.737     -.273673    .3868053
  _Isector_30 |   .3847831   .1623944     2.37   0.018     .0662803     .703286
  _Isector_31 |   .6533235   .1633711     4.00   0.000     .3329051    .9737419
  _Isector_32 |          0  (omitted)
  _Isector_33 |          0  (omitted)
  _Isector_34 |          0  (omitted)
  _Isector_35 |   .3189221   .3122613     1.02   0.307    -.2935134    .9313576
  _Isector_36 |          0  (omitted)
  _Isector_37 |          0  (omitted)
  _Isector_38 |   .3042561   .1754413     1.73   0.083    -.0398355    .6483477
  _Isector_39 |   .1975719    .173301     1.14   0.254    -.1423218    .5374657
  _Isector_40 |   .0865599   .2450742     0.35   0.724    -.3941021    .5672218
  _Isector_41 |   .1387146    .154353     0.90   0.369    -.1640167    .4414459
  _Isector_42 |    .158582   .1582203     1.00   0.316    -.1517342    .4688981
  _Isector_43 |          0  (omitted)
  _Isector_44 |   2.207211   .8223393     2.68   0.007     .5943637    3.820058
  _Isector_45 |          0  (omitted)
  _Isector_46 |          0  (omitted)
    _Ieduc_32 |          0  (omitted)
    _Ieduc_33 |          0  (omitted)
    _Ieduc_35 |   .1053599   .0718878     1.47   0.143    -.0356329    .2463528
    _Ieduc_36 |          0  (omitted)
    _Ieduc_37 |          0  (omitted)
    _Ieduc_38 |          0  (omitted)
    _Ieduc_53 |          0  (omitted)
    _Ieduc_54 |          0  (omitted)
    _Ieduc_55 |   1.330746   .5342918     2.49   0.013     .2828438    2.378648
    _Ieduc_56 |          0  (omitted)
    _Ieduc_57 |          0  (omitted)
    _Ieduc_63 |          0  (omitted)
    _Ieduc_64 |          0  (omitted)
    _Ieduc_65 |    1.34649   .4663401     2.89   0.004     .4318615    2.261119
    _Ieduc_66 |          0  (omitted)
    _Ieduc_72 |          0  (omitted)
    _Ieduc_73 |          0  (omitted)
    _Ieduc_74 |    1.49083   .4450068     3.35   0.001     .6180418    2.363618
    _Ieduc_75 |   1.505577   .4353674     3.46   0.001     .6516947     2.35946
    _Ieduc_76 |          0  (omitted)
    _Ieduc_77 |          0  (omitted)
    _Ieduc_83 |          0  (omitted)
    _Ieduc_84 |   1.446687   .4539833     3.19   0.001      .556293     2.33708
    _Ieduc_85 |   1.532666   .4516609     3.39   0.001     .6468273    2.418505
    _Ieduc_86 |          0  (omitted)
    _Ieduc_87 |          0  (omitted)
    _Ieduc_99 |   .2919229   .1352829     2.16   0.031     .0265936    .5572521
    _Inuts2_2 |  -.2814406   .1782584    -1.58   0.115    -.6310572    .0681761
    _Inuts2_3 |  -.0854326   .1250939    -0.68   0.495    -.3307782     .159913
    _Inuts2_4 |  -.1496907   .1472729    -1.02   0.310    -.4385357    .1391544
    _Inuts2_5 |  -.0133263   .1425759    -0.09   0.926    -.2929593    .2663066
    _Inuts2_6 |          0  (omitted)
       nocits |  -.0127887   .0324154    -0.39   0.693    -.0763649    .0507874
       cits10 |  -.0391498   .0255487    -1.53   0.126    -.0892583    .0109588
       cits20 |  -.0113063   .0521074    -0.22   0.828    -.1135041    .0908914
       cits30 |  -.0458003   .0895919    -0.51   0.609    -.2215161    .1299155
      topcits |    .100958   .0920059     1.10   0.273    -.0794924    .2814083
       lagnoc |  -.0476771   .0442874    -1.08   0.282    -.1345377    .0391834
       lag10c |   -.028813   .0337057    -0.85   0.393    -.0949197    .0372936
       lag20c |  -.0461012   .0559373    -0.82   0.410    -.1558105    .0636081
       lag30c |  -.0710327   .1344338    -0.53   0.597    -.3346966    .1926313
      lagtopc |  -.0255802   .0941974    -0.27   0.786    -.2103288    .1591684
      lagnoc2 |  -.1086543   .0623816    -1.74   0.082    -.2310028    .0136941
      lag10c2 |  -.0531058   .0385176    -1.38   0.168    -.1286501    .0224384
      lag20c2 |  -.0735021   .0531945    -1.38   0.167    -.1778319    .0308278
      lag30c2 |  -.1357251   .1287676    -1.05   0.292    -.3882759    .1168257
     lagtopc2 |   .0536123   .1325346     0.40   0.686    -.2063267    .3135513
      lagnoc3 |  -.0638105   .0523364    -1.22   0.223    -.1664574    .0388364
      lag10c3 |  -.0277756   .0281197    -0.99   0.323    -.0829264    .0273753
      lag20c3 |  -.0142312   .0624376    -0.23   0.820    -.1366896    .1082273
      lag30c3 |  -.0258302   .1356225    -0.19   0.849    -.2918254    .2401651
      lagtop3 |   .1833481   .1213868     1.51   0.131    -.0547269     .421423
      lagnoc4 |  -.0904051   .0550503    -1.64   0.101    -.1983749    .0175647
      lag10c4 |  -.0206321   .0310578    -0.66   0.507    -.0815455    .0402814
      lag20c4 |  -.0666684   .0564007    -1.18   0.237    -.1772865    .0439498
      lag30c4 |   .0366636   .1245665     0.29   0.769    -.2076476    .2809747
     lagtopc4 |   .2749684   .1189313     2.31   0.021     .0417094    .5082273
      lagnoc5 |  -.0618635   .0541403    -1.14   0.253    -.1680485    .0443215
      lag10c5 |   .0368381   .0273489     1.35   0.178    -.0168011    .0904772
      lag20c5 |   .0379317   .0548433     0.69   0.489     -.069632    .1454955
      lag30c5 |   .0785145   .1275605     0.62   0.538    -.1716688    .3286978
     lagtopc5 |   .2851599   .1172466     2.43   0.015     .0552051    .5151148
      lagnoc6 |  -.0519933   .0530206    -0.98   0.327    -.1559823    .0519956
      lag10c6 |   .0273424    .021999     1.24   0.214    -.0158041    .0704889
      lag20c6 |   .0081831   .0281803     0.29   0.772    -.0470867    .0634528
      lag30c6 |   .1358379   .0753669     1.80   0.072    -.0119786    .2836544
     lagtopc6 |   .3470859   .1599855     2.17   0.030     .0333077    .6608642
firm_citcount |  -3.60e-07   .0001015    -0.00   0.997    -.0001994    .0001987
      lagfits |   .0002087    .000128     1.63   0.103    -.0000422    .0004597
      lagfit2 |   .0001635   .0001658     0.99   0.324    -.0001617    .0004887
      lagfit3 |   .0001968   .0002096     0.94   0.348    -.0002142    .0006078
      lagfit4 |   .0008624   .0002613     3.30   0.001     .0003499    .0013749
      lagfit5 |  -.0015205    .000416    -3.66   0.000    -.0023363   -.0007046
      lagfit6 |    .001099   .0004638     2.37   0.018     .0001893    .0020088
        _cons |   6.514875   .9361492     6.96   0.000     4.678814    8.350937
--------------+----------------------------------------------------------------
      sigma_u |  .66387656
      sigma_e |  .37374606
          rho |   .7593354   (fraction of variance due to u_i)
-------------------------------------------------------------------------------

.  /* TABLE 8 col 1 */
> 
> 
> *sample for which RD intensity avaialble;
. xi: xtreg logwage $expl_7 if rd_int!=., fe robust  ;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: female omitted because of collinearity
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Ivuosi_1996 omitted because of collinearity
note: _Ivuosi_1997 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_2 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_7 omitted because of collinearity
note: _Isector_8 omitted because of collinearity
note: _Isector_9 omitted because of collinearity
note: _Isector_11 omitted because of collinearity
note: _Isector_15 omitted because of collinearity
note: _Isector_23 omitted because of collinearity
note: _Isector_28 omitted because of collinearity
note: _Isector_30 omitted because of collinearity
note: _Isector_31 omitted because of collinearity
note: _Isector_32 omitted because of collinearity
note: _Isector_33 omitted because of collinearity
note: _Isector_34 omitted because of collinearity
note: _Isector_36 omitted because of collinearity
note: _Isector_37 omitted because of collinearity
note: _Isector_38 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Isector_44 omitted because of collinearity
note: _Isector_45 omitted because of collinearity
note: _Isector_46 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_64 omitted because of collinearity
note: _Ieduc_66 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_73 omitted because of collinearity
note: _Ieduc_76 omitted because of collinearity
note: _Ieduc_77 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity
note: _Ieduc_86 omitted because of collinearity
note: _Ieduc_87 omitted because of collinearity
note: _Inuts2_6 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =      3709
Group variable: id                              Number of groups   =      1622

R-sq:  within  = 0.0920                         Obs per group: min =         1
       between = 0.1068                                        avg =       2.3
       overall = 0.1195                                        max =         3

                                                F(36,1621)         =         .
corr(u_i, Xb)  = -0.5837                        Prob > F           =         .

                                  (Std. Err. adjusted for 1622 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .1459567   .0384046     3.80   0.000     .0706288    .2212846
        age2 |  -.0013467   .0003881    -3.47   0.001     -.002108   -.0005854
      tenure |   .0066335   .0020209     3.28   0.001     .0026696    .0105974
      female |          0  (omitted)
      months |   -.000577   .0050066    -0.12   0.908    -.0103971    .0092431
         emp |    .003481   .0020921     1.66   0.096    -.0006225    .0075845
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |          0  (omitted)
_Ivuosi_1995 |          0  (omitted)
_Ivuosi_1996 |          0  (omitted)
_Ivuosi_1997 |          0  (omitted)
_Ivuosi_1998 |   .0216042   .0077938     2.77   0.006     .0063172    .0368913
_Ivuosi_1999 |          0  (omitted)
  _Isector_2 |          0  (omitted)
  _Isector_3 |          0  (omitted)
  _Isector_4 |   .0131754   .0194586     0.68   0.498    -.0249913     .051342
  _Isector_5 |  -.2778965   .2853212    -0.97   0.330    -.8375336    .2817406
  _Isector_6 |          0  (omitted)
  _Isector_7 |          0  (omitted)
  _Isector_8 |          0  (omitted)
  _Isector_9 |          0  (omitted)
 _Isector_10 |  -.1810971   .2639307    -0.69   0.493    -.6987783     .336584
 _Isector_11 |          0  (omitted)
 _Isector_12 |  -.2443773   .1492361    -1.64   0.102    -.5370932    .0483387
 _Isector_13 |  -.0307251   .0748722    -0.41   0.682    -.1775815    .1161313
 _Isector_14 |  -.1994932   .1730036    -1.15   0.249    -.5388273     .139841
 _Isector_15 |          0  (omitted)
 _Isector_16 |  -.1326326   .1813201    -0.73   0.465     -.488279    .2230139
 _Isector_17 |  -.0051361    .169552    -0.03   0.976    -.3377003     .327428
 _Isector_18 |   -.204244   .1359578    -1.50   0.133    -.4709155    .0624275
 _Isector_19 |  -.9692813   .2827146    -3.43   0.001    -1.523806   -.4147569
 _Isector_20 |  -.1488766   .1423983    -1.05   0.296    -.4281807    .1304275
 _Isector_21 |  -.6723265   .3158008    -2.13   0.033    -1.291747   -.0529059
 _Isector_22 |  -.1281492   .0935599    -1.37   0.171    -.3116601    .0553618
 _Isector_23 |          0  (omitted)
 _Isector_24 |  -.3511489   .2342048    -1.50   0.134    -.8105249    .1082272
 _Isector_25 |  -.0493163    .088401    -0.56   0.577    -.2227086     .124076
 _Isector_26 |  -.0757169   .1117795    -0.68   0.498    -.2949643    .1435306
 _Isector_27 |   -.301686   .1576528    -1.91   0.056    -.6109106    .0075386
 _Isector_28 |          0  (omitted)
 _Isector_29 |  -.2185233   .1503568    -1.45   0.146    -.5134373    .0763908
 _Isector_30 |          0  (omitted)
 _Isector_31 |          0  (omitted)
 _Isector_32 |          0  (omitted)
 _Isector_33 |          0  (omitted)
 _Isector_34 |          0  (omitted)
 _Isector_35 |  -.8474264   .4269595    -1.98   0.047    -1.684877   -.0099759
 _Isector_36 |          0  (omitted)
 _Isector_37 |          0  (omitted)
 _Isector_38 |          0  (omitted)
 _Isector_39 |  -.1779264   .1280274    -1.39   0.165     -.429043    .0731901
 _Isector_40 |  -.0601808   .1812555    -0.33   0.740    -.4157005    .2953389
 _Isector_41 |   -.253454    .101147    -2.51   0.012    -.4518465   -.0550614
 _Isector_42 |   .1551423   .1849912     0.84   0.402    -.2077046    .5179893
 _Isector_43 |          0  (omitted)
 _Isector_44 |          0  (omitted)
 _Isector_45 |          0  (omitted)
 _Isector_46 |          0  (omitted)
   _Ieduc_32 |          0  (omitted)
   _Ieduc_33 |          0  (omitted)
   _Ieduc_35 |   .0119304   .0378227     0.32   0.752    -.0622561    .0861169
   _Ieduc_36 |          0  (omitted)
   _Ieduc_37 |          0  (omitted)
   _Ieduc_38 |          0  (omitted)
   _Ieduc_53 |          0  (omitted)
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |  -.1571894   .4152583    -0.38   0.705    -.9716888      .65731
   _Ieduc_56 |          0  (omitted)
   _Ieduc_57 |          0  (omitted)
   _Ieduc_63 |          0  (omitted)
   _Ieduc_64 |          0  (omitted)
   _Ieduc_65 |   .4048832   .4129061     0.98   0.327    -.4050025    1.214769
   _Ieduc_66 |          0  (omitted)
   _Ieduc_72 |          0  (omitted)
   _Ieduc_73 |          0  (omitted)
   _Ieduc_74 |   .4780824   .4063163     1.18   0.240    -.3188779    1.275043
   _Ieduc_75 |   .8203861   .3112938     2.64   0.008     .2098056    1.430967
   _Ieduc_76 |          0  (omitted)
   _Ieduc_77 |          0  (omitted)
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |   .4860698   .4020858     1.21   0.227    -.3025928    1.274732
   _Ieduc_85 |   .7823345   .3133539     2.50   0.013     .1677131    1.396956
   _Ieduc_86 |          0  (omitted)
   _Ieduc_87 |          0  (omitted)
   _Ieduc_99 |   .2827898   .0662116     4.27   0.000     .1529205    .4126591
   _Inuts2_2 |   -.129262   .1146564    -1.13   0.260    -.3541524    .0956284
   _Inuts2_3 |   .0475853   .0690726     0.69   0.491    -.0878956    .1830662
   _Inuts2_4 |   .0317583   .0821342     0.39   0.699    -.1293421    .1928586
   _Inuts2_5 |  -.0480042   .0806578    -0.60   0.552    -.2062086    .1102003
   _Inuts2_6 |          0  (omitted)
        pats |   .0352265   .0137675     2.56   0.011     .0082225    .0622306
     lagpats |   .0078852   .0278238     0.28   0.777    -.0466892    .0624595
     lagpat2 |   .0011584   .0193718     0.06   0.952    -.0368381    .0391549
     lagpat3 |    .004856   .0197026     0.25   0.805    -.0337892    .0435012
     lagpat4 |   .0366565   .0206843     1.77   0.077    -.0039143    .0772274
     lagpat5 |   .0355687   .0150992     2.36   0.019     .0059527    .0651847
     lagpat6 |   .0462732   .0189634     2.44   0.015     .0090779    .0834685
       _cons |   6.500367   .9481753     6.86   0.000     4.640589    8.360145
-------------+----------------------------------------------------------------
     sigma_u |  .52042036
     sigma_e |  .24499692
         rho |  .81858388   (fraction of variance due to u_i)
------------------------------------------------------------------------------

.  /* TABLE 6 col 3 */
> xi: xtreg logwage $expl_17 if rd_int!=.,  fe robust  ;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: female omitted because of collinearity
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Ivuosi_1996 omitted because of collinearity
note: _Ivuosi_1997 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_2 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_7 omitted because of collinearity
note: _Isector_8 omitted because of collinearity
note: _Isector_9 omitted because of collinearity
note: _Isector_11 omitted because of collinearity
note: _Isector_15 omitted because of collinearity
note: _Isector_23 omitted because of collinearity
note: _Isector_28 omitted because of collinearity
note: _Isector_30 omitted because of collinearity
note: _Isector_31 omitted because of collinearity
note: _Isector_32 omitted because of collinearity
note: _Isector_33 omitted because of collinearity
note: _Isector_34 omitted because of collinearity
note: _Isector_36 omitted because of collinearity
note: _Isector_37 omitted because of collinearity
note: _Isector_38 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Isector_44 omitted because of collinearity
note: _Isector_45 omitted because of collinearity
note: _Isector_46 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_64 omitted because of collinearity
note: _Ieduc_66 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_73 omitted because of collinearity
note: _Ieduc_76 omitted because of collinearity
note: _Ieduc_77 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity
note: _Ieduc_86 omitted because of collinearity
note: _Ieduc_87 omitted because of collinearity
note: _Inuts2_6 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =      3709
Group variable: id                              Number of groups   =      1622

R-sq:  within  = 0.0997                         Obs per group: min =         1
       between = 0.1099                                        avg =       2.3
       overall = 0.1224                                        max =         3

                                                F(36,1621)         =         .
corr(u_i, Xb)  = -0.5773                        Prob > F           =         .

                                  (Std. Err. adjusted for 1622 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .1430309   .0391287     3.66   0.000     .0662827    .2197791
        age2 |  -.0013039   .0003954    -3.30   0.001    -.0020794   -.0005283
      tenure |   .0065149   .0019773     3.29   0.001     .0026365    .0103933
      female |          0  (omitted)
      months |  -.0003657   .0051303    -0.07   0.943    -.0104284     .009697
         emp |   .0036912   .0020281     1.82   0.069    -.0002867    .0076691
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |          0  (omitted)
_Ivuosi_1995 |          0  (omitted)
_Ivuosi_1996 |          0  (omitted)
_Ivuosi_1997 |          0  (omitted)
_Ivuosi_1998 |   .0223479   .0075069     2.98   0.003     .0076237     .037072
_Ivuosi_1999 |          0  (omitted)
  _Isector_2 |          0  (omitted)
  _Isector_3 |          0  (omitted)
  _Isector_4 |   .0137984   .0141839     0.97   0.331    -.0140223    .0416191
  _Isector_5 |  -.2944634   .2857302    -1.03   0.303    -.8549027    .2659759
  _Isector_6 |          0  (omitted)
  _Isector_7 |          0  (omitted)
  _Isector_8 |          0  (omitted)
  _Isector_9 |          0  (omitted)
 _Isector_10 |   -.223126   .2628924    -0.85   0.396    -.7387706    .2925186
 _Isector_11 |          0  (omitted)
 _Isector_12 |  -.2687219   .1468348    -1.83   0.067    -.5567279    .0192842
 _Isector_13 |  -.0523707   .0701457    -0.75   0.455    -.1899564    .0852151
 _Isector_14 |  -.2076822   .1704533    -1.22   0.223    -.5420142    .1266497
 _Isector_15 |          0  (omitted)
 _Isector_16 |  -.1430727   .1784255    -0.80   0.423    -.4930415    .2068961
 _Isector_17 |  -.0213735   .1690447    -0.13   0.899    -.3529426    .3101957
 _Isector_18 |  -.2038733   .1337006    -1.52   0.127    -.4661174    .0583709
 _Isector_19 |  -.9340868   .2616223    -3.57   0.000     -1.44724   -.4209334
 _Isector_20 |  -.1610658   .1417391    -1.14   0.256     -.439077    .1169453
 _Isector_21 |  -.6716217   .3153668    -2.13   0.033    -1.290191   -.0530522
 _Isector_22 |  -.1426605   .0939385    -1.52   0.129    -.3269142    .0415931
 _Isector_23 |          0  (omitted)
 _Isector_24 |  -.3584508    .232795    -1.54   0.124    -.8150616      .09816
 _Isector_25 |  -.0675182   .0833434    -0.81   0.418    -.2309903    .0959539
 _Isector_26 |  -.0968491    .106521    -0.91   0.363    -.3057824    .1120843
 _Isector_27 |  -.3011764   .1500746    -2.01   0.045    -.5955371   -.0068158
 _Isector_28 |          0  (omitted)
 _Isector_29 |  -.2328259   .1495205    -1.56   0.120    -.5260996    .0604478
 _Isector_30 |          0  (omitted)
 _Isector_31 |          0  (omitted)
 _Isector_32 |          0  (omitted)
 _Isector_33 |          0  (omitted)
 _Isector_34 |          0  (omitted)
 _Isector_35 |  -.8686733   .4224568    -2.06   0.040    -1.697292   -.0400544
 _Isector_36 |          0  (omitted)
 _Isector_37 |          0  (omitted)
 _Isector_38 |          0  (omitted)
 _Isector_39 |  -.1753882   .1175527    -1.49   0.136    -.4059594    .0551829
 _Isector_40 |  -.0767426    .181994    -0.42   0.673    -.4337108    .2802257
 _Isector_41 |   -.275359    .103865    -2.65   0.008    -.4790827   -.0716353
 _Isector_42 |   .1412202   .1818419     0.78   0.438    -.2154496      .49789
 _Isector_43 |          0  (omitted)
 _Isector_44 |          0  (omitted)
 _Isector_45 |          0  (omitted)
 _Isector_46 |          0  (omitted)
   _Ieduc_32 |          0  (omitted)
   _Ieduc_33 |          0  (omitted)
   _Ieduc_35 |   .0119891   .0330555     0.36   0.717     -.052847    .0768252
   _Ieduc_36 |          0  (omitted)
   _Ieduc_37 |          0  (omitted)
   _Ieduc_38 |          0  (omitted)
   _Ieduc_53 |          0  (omitted)
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |   -.170525   .4080257    -0.42   0.676    -.9708383    .6297883
   _Ieduc_56 |          0  (omitted)
   _Ieduc_57 |          0  (omitted)
   _Ieduc_63 |          0  (omitted)
   _Ieduc_64 |          0  (omitted)
   _Ieduc_65 |   .3957734   .4093029     0.97   0.334    -.4070449    1.198592
   _Ieduc_66 |          0  (omitted)
   _Ieduc_72 |          0  (omitted)
   _Ieduc_73 |          0  (omitted)
   _Ieduc_74 |   .4739345   .4025286     1.18   0.239    -.3155967    1.263466
   _Ieduc_75 |   .8040679   .3089418     2.60   0.009     .1981006    1.410035
   _Ieduc_76 |          0  (omitted)
   _Ieduc_77 |          0  (omitted)
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |   .4684704   .4003477     1.17   0.242     -.316783    1.253724
   _Ieduc_85 |   .7622857   .3108079     2.45   0.014     .1526581    1.371913
   _Ieduc_86 |          0  (omitted)
   _Ieduc_87 |          0  (omitted)
   _Ieduc_99 |   .2669788   .0631332     4.23   0.000     .1431476    .3908101
   _Inuts2_2 |  -.1404018   .1154419    -1.22   0.224    -.3668328    .0860292
   _Inuts2_3 |    .033439   .0664159     0.50   0.615    -.0968311    .1637091
   _Inuts2_4 |   .0430355   .0808108     0.53   0.594    -.1154691      .20154
   _Inuts2_5 |  -.0505056   .0760771    -0.66   0.507    -.1997255    .0987143
   _Inuts2_6 |          0  (omitted)
        pats |   .0335804   .0120684     2.78   0.005     .0099091    .0572517
     lagcits |   .0005682   .0015272     0.37   0.710    -.0024274    .0035637
     lagcit2 |  -.0005993   .0014021    -0.43   0.669    -.0033493    .0021508
     lagcit3 |   .0009293   .0013368     0.70   0.487    -.0016927    .0035514
     lagcit4 |   .0034475   .0014819     2.33   0.020     .0005409    .0063541
     lagcit5 |   .0025048   .0009765     2.56   0.010     .0005893    .0044202
     lagcit6 |   .0043953   .0024196     1.82   0.069    -.0003506    .0091412
       _cons |   6.568826   .9826832     6.68   0.000     4.641363    8.496289
-------------+----------------------------------------------------------------
     sigma_u |  .51583825
     sigma_e |  .24395075
         rho |  .81722428   (fraction of variance due to u_i)
------------------------------------------------------------------------------

.  /* TABLE 7  col 3 */
> xi: xtreg logwage $expl_0 $expl_cg if rd_int!=.,  fe robust  ;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: female omitted because of collinearity
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Ivuosi_1996 omitted because of collinearity
note: _Ivuosi_1997 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_2 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_7 omitted because of collinearity
note: _Isector_8 omitted because of collinearity
note: _Isector_9 omitted because of collinearity
note: _Isector_11 omitted because of collinearity
note: _Isector_15 omitted because of collinearity
note: _Isector_23 omitted because of collinearity
note: _Isector_28 omitted because of collinearity
note: _Isector_30 omitted because of collinearity
note: _Isector_31 omitted because of collinearity
note: _Isector_32 omitted because of collinearity
note: _Isector_33 omitted because of collinearity
note: _Isector_34 omitted because of collinearity
note: _Isector_36 omitted because of collinearity
note: _Isector_37 omitted because of collinearity
note: _Isector_38 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Isector_44 omitted because of collinearity
note: _Isector_45 omitted because of collinearity
note: _Isector_46 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_64 omitted because of collinearity
note: _Ieduc_66 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_73 omitted because of collinearity
note: _Ieduc_76 omitted because of collinearity
note: _Ieduc_77 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity
note: _Ieduc_86 omitted because of collinearity
note: _Ieduc_87 omitted because of collinearity
note: _Inuts2_6 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =      3709
Group variable: id                              Number of groups   =      1622

R-sq:  within  = 0.1147                         Obs per group: min =         1
       between = 0.1086                                        avg =       2.3
       overall = 0.1220                                        max =         3

                                                F(64,1621)         =         .
corr(u_i, Xb)  = -0.5986                        Prob > F           =         .

                                  (Std. Err. adjusted for 1622 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .1500725   .0379759     3.95   0.000     .0755855    .2245595
        age2 |  -.0013646   .0003965    -3.44   0.001    -.0021423   -.0005869
      tenure |   .0070811   .0021226     3.34   0.001     .0029177    .0112445
      female |          0  (omitted)
      months |  -.0002021   .0053761    -0.04   0.970    -.0107469    .0103428
         emp |   .0035497   .0020726     1.71   0.087    -.0005156    .0076151
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |          0  (omitted)
_Ivuosi_1995 |          0  (omitted)
_Ivuosi_1996 |          0  (omitted)
_Ivuosi_1997 |          0  (omitted)
_Ivuosi_1998 |   .0212713   .0077983     2.73   0.006     .0059755    .0365671
_Ivuosi_1999 |          0  (omitted)
  _Isector_2 |          0  (omitted)
  _Isector_3 |          0  (omitted)
  _Isector_4 |  -.0197812   .0202974    -0.97   0.330    -.0595931    .0200308
  _Isector_5 |  -.3537601   .2795281    -1.27   0.206    -.9020345    .1945143
  _Isector_6 |          0  (omitted)
  _Isector_7 |          0  (omitted)
  _Isector_8 |          0  (omitted)
  _Isector_9 |          0  (omitted)
 _Isector_10 |  -.1883894   .2933513    -0.64   0.521    -.7637771    .3869983
 _Isector_11 |          0  (omitted)
 _Isector_12 |  -.2642593   .1560627    -1.69   0.091    -.5703652    .0418465
 _Isector_13 |  -.0667146   .0746395    -0.89   0.372    -.2131146    .0796855
 _Isector_14 |  -.2707698   .1610382    -1.68   0.093    -.5866347    .0450951
 _Isector_15 |          0  (omitted)
 _Isector_16 |  -.1338192    .174626    -0.77   0.444    -.4763357    .2086973
 _Isector_17 |  -.0241773   .1773537    -0.14   0.892    -.3720438    .3236892
 _Isector_18 |  -.2247051   .1310923    -1.71   0.087    -.4818333     .032423
 _Isector_19 |  -.9449741   .2580948    -3.66   0.000    -1.451209   -.4387396
 _Isector_20 |  -.0952549   .1278064    -0.75   0.456    -.3459381    .1554282
 _Isector_21 |  -.7074673   .3145932    -2.25   0.025    -1.324519   -.0904152
 _Isector_22 |  -.1401802   .0928091    -1.51   0.131    -.3222186    .0418582
 _Isector_23 |          0  (omitted)
 _Isector_24 |  -.3817063   .2356508    -1.62   0.105    -.8439184    .0805059
 _Isector_25 |  -.0808339   .1038759    -0.78   0.437     -.284579    .1229112
 _Isector_26 |   -.041816   .1230777    -0.34   0.734    -.2832242    .1995922
 _Isector_27 |  -.2635351   .1489575    -1.77   0.077    -.5557045    .0286343
 _Isector_28 |          0  (omitted)
 _Isector_29 |  -.2664309   .1455935    -1.83   0.067    -.5520022    .0191404
 _Isector_30 |          0  (omitted)
 _Isector_31 |          0  (omitted)
 _Isector_32 |          0  (omitted)
 _Isector_33 |          0  (omitted)
 _Isector_34 |          0  (omitted)
 _Isector_35 |  -.8725056   .4177633    -2.09   0.037    -1.691918   -.0530928
 _Isector_36 |          0  (omitted)
 _Isector_37 |          0  (omitted)
 _Isector_38 |          0  (omitted)
 _Isector_39 |  -.2548141   .1167376    -2.18   0.029    -.4837866   -.0258416
 _Isector_40 |  -.0545922   .1976001    -0.28   0.782    -.4421708    .3329863
 _Isector_41 |  -.2988388    .099526    -3.00   0.003    -.4940519   -.1036258
 _Isector_42 |   .1322876   .1818691     0.73   0.467    -.2244358    .4890109
 _Isector_43 |          0  (omitted)
 _Isector_44 |          0  (omitted)
 _Isector_45 |          0  (omitted)
 _Isector_46 |          0  (omitted)
   _Ieduc_32 |          0  (omitted)
   _Ieduc_33 |          0  (omitted)
   _Ieduc_35 |   .0582485   .0655712     0.89   0.374    -.0703648    .1868617
   _Ieduc_36 |          0  (omitted)
   _Ieduc_37 |          0  (omitted)
   _Ieduc_38 |          0  (omitted)
   _Ieduc_53 |          0  (omitted)
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |  -.1697637   .4106807    -0.41   0.679    -.9752846    .6357572
   _Ieduc_56 |          0  (omitted)
   _Ieduc_57 |          0  (omitted)
   _Ieduc_63 |          0  (omitted)
   _Ieduc_64 |          0  (omitted)
   _Ieduc_65 |   .3919304   .4109799     0.95   0.340    -.4141772    1.198038
   _Ieduc_66 |          0  (omitted)
   _Ieduc_72 |          0  (omitted)
   _Ieduc_73 |          0  (omitted)
   _Ieduc_74 |   .4863937   .4067729     1.20   0.232    -.3114623     1.28425
   _Ieduc_75 |    .830123   .3157533     2.63   0.009     .2107954    1.449451
   _Ieduc_76 |          0  (omitted)
   _Ieduc_77 |          0  (omitted)
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |   .5216385   .4047963     1.29   0.198    -.2723406    1.315618
   _Ieduc_85 |   .7557213   .3192329     2.37   0.018     .1295688    1.381874
   _Ieduc_86 |          0  (omitted)
   _Ieduc_87 |          0  (omitted)
   _Ieduc_99 |   .3055141   .1017289     3.00   0.003     .1059801     .505048
   _Inuts2_2 |  -.1321637   .1019967    -1.30   0.195    -.3322228    .0678955
   _Inuts2_3 |     .01266   .0929921     0.14   0.892    -.1697373    .1950573
   _Inuts2_4 |   .0052501   .0766855     0.07   0.945    -.1451629    .1556632
   _Inuts2_5 |  -.0358471   .0672339    -0.53   0.594    -.1677217    .0960274
   _Inuts2_6 |          0  (omitted)
      nocits |  -.0037565   .0364652    -0.10   0.918    -.0752804    .0677673
      cits10 |   .0043458   .0220342     0.20   0.844    -.0388727    .0475643
      cits20 |  -.0012633   .0191067    -0.07   0.947    -.0387398    .0362132
      cits30 |  -.0091692    .051878    -0.18   0.860    -.1109243    .0925858
     topcits |   .2281843   .0980301     2.33   0.020     .0359052    .4204634
      lagnoc |  -.0417557   .0572897    -0.73   0.466    -.1541254     .070614
      lag10c |  -.0114547   .0351061    -0.33   0.744    -.0803129    .0574035
      lag20c |  -.0291409   .0280217    -1.04   0.299    -.0841036    .0258217
      lag30c |  -.0923092   .1482201    -0.62   0.534    -.3830323     .198414
     lagtopc |   .1575363   .0858053     1.84   0.067    -.0107646    .3258372
     lagnoc2 |  -.1000666   .0775153    -1.29   0.197    -.2521074    .0519741
     lag10c2 |   .0229701   .0318084     0.72   0.470    -.0394197      .08536
     lag20c2 |  -.0459619   .0287148    -1.60   0.110    -.1022839      .01036
     lag30c2 |  -.1789773   .1380793    -1.30   0.195      -.44981    .0918554
    lagtopc2 |    .111077   .0821247     1.35   0.176    -.0500048    .2721588
     lagnoc3 |  -.0541384   .0620628    -0.87   0.383    -.1758701    .0675932
     lag10c3 |   .0085049   .0251866     0.34   0.736    -.0408967    .0579066
     lag20c3 |  -.0210705   .0374289    -0.56   0.574    -.0944846    .0523435
     lag30c3 |  -.1867812   .1469523    -1.27   0.204    -.4750176    .1014551
     lagtop3 |   .2111378   .0731598     2.89   0.004       .06764    .3546356
     lagnoc4 |  -.0654931   .0584984    -1.12   0.263    -.1802334    .0492473
     lag10c4 |  -.0142043   .0284782    -0.50   0.618    -.0700623    .0416537
     lag20c4 |  -.0491349   .0406505    -1.21   0.227    -.1288679    .0305981
     lag30c4 |  -.0343465   .0986241    -0.35   0.728    -.2277906    .1590976
    lagtopc4 |   .3382331   .1023659     3.30   0.001     .1374498    .5390164
     lagnoc5 |  -.0312053   .0578779    -0.54   0.590    -.1447287     .082318
     lag10c5 |   .0303235   .0251242     1.21   0.228    -.0189558    .0796027
     lag20c5 |   -.022884   .0561728    -0.41   0.684     -.133063    .0872949
     lag30c5 |  -.0221529   .0968163    -0.23   0.819    -.2120512    .1677454
    lagtopc5 |   .2183885   .0862807     2.53   0.011     .0491551     .387622
     lagnoc6 |   .0012362   .0504826     0.02   0.980    -.0977817    .1002542
     lag10c6 |   .0338086    .026461     1.28   0.202    -.0180927      .08571
     lag20c6 |   .0079873   .0198046     0.40   0.687     -.030858    .0468326
     lag30c6 |   .0593145   .0488676     1.21   0.225    -.0365358    .1551649
    lagtopc6 |   .3036496   .1524937     1.99   0.047     .0045442    .6027551
       _cons |   6.391839   .9155731     6.98   0.000     4.596008     8.18767
-------------+----------------------------------------------------------------
     sigma_u |  .52551756
     sigma_e |  .24359206
         rho |  .82314138   (fraction of variance due to u_i)
------------------------------------------------------------------------------

.  /* TABLE 8  col 3 */
> 
> *with firm R&D intensity;
. replace rd_int=0.0000001 if rd_int==0;
(416 real changes made)

. replace rd_int=log(rd_int);
(12847 real changes made)

. xi: xtreg logwage $expl_7 rd_int, fe robust  ;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: female omitted because of collinearity
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Ivuosi_1996 omitted because of collinearity
note: _Ivuosi_1997 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_2 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_7 omitted because of collinearity
note: _Isector_8 omitted because of collinearity
note: _Isector_9 omitted because of collinearity
note: _Isector_11 omitted because of collinearity
note: _Isector_15 omitted because of collinearity
note: _Isector_23 omitted because of collinearity
note: _Isector_28 omitted because of collinearity
note: _Isector_30 omitted because of collinearity
note: _Isector_31 omitted because of collinearity
note: _Isector_32 omitted because of collinearity
note: _Isector_33 omitted because of collinearity
note: _Isector_34 omitted because of collinearity
note: _Isector_36 omitted because of collinearity
note: _Isector_37 omitted because of collinearity
note: _Isector_38 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Isector_44 omitted because of collinearity
note: _Isector_45 omitted because of collinearity
note: _Isector_46 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_64 omitted because of collinearity
note: _Ieduc_66 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_73 omitted because of collinearity
note: _Ieduc_76 omitted because of collinearity
note: _Ieduc_77 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity
note: _Ieduc_86 omitted because of collinearity
note: _Ieduc_87 omitted because of collinearity
note: _Inuts2_6 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =      3709
Group variable: id                              Number of groups   =      1622

R-sq:  within  = 0.0932                         Obs per group: min =         1
       between = 0.1067                                        avg =       2.3
       overall = 0.1204                                        max =         3

                                                F(37,1621)         =         .
corr(u_i, Xb)  = -0.5875                        Prob > F           =         .

                                  (Std. Err. adjusted for 1622 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .1458902   .0385363     3.79   0.000      .070304    .2214763
        age2 |  -.0013391   .0003895    -3.44   0.001     -.002103   -.0005751
      tenure |   .0066757   .0019932     3.35   0.001     .0027663    .0105852
      female |          0  (omitted)
      months |  -.0002138   .0050545    -0.04   0.966    -.0101278    .0097003
         emp |    .003345   .0020135     1.66   0.097    -.0006043    .0072942
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |          0  (omitted)
_Ivuosi_1995 |          0  (omitted)
_Ivuosi_1996 |          0  (omitted)
_Ivuosi_1997 |          0  (omitted)
_Ivuosi_1998 |   .0216258   .0077769     2.78   0.005      .006372    .0368796
_Ivuosi_1999 |          0  (omitted)
  _Isector_2 |          0  (omitted)
  _Isector_3 |          0  (omitted)
  _Isector_4 |   .0170297   .0199985     0.85   0.395     -.022196    .0562553
  _Isector_5 |  -.2790596   .2890166    -0.97   0.334     -.845945    .2878258
  _Isector_6 |          0  (omitted)
  _Isector_7 |          0  (omitted)
  _Isector_8 |          0  (omitted)
  _Isector_9 |          0  (omitted)
 _Isector_10 |   -.152067   .2428994    -0.63   0.531    -.6284968    .3243629
 _Isector_11 |          0  (omitted)
 _Isector_12 |  -.2543504   .1532296    -1.66   0.097    -.5548993    .0461986
 _Isector_13 |  -.0297917   .0749092    -0.40   0.691    -.1767207    .1171374
 _Isector_14 |  -.2169292     .18381    -1.18   0.238    -.5774594     .143601
 _Isector_15 |          0  (omitted)
 _Isector_16 |  -.1572418   .1882429    -0.84   0.404    -.5264669    .2119832
 _Isector_17 |  -.0555685   .1888486    -0.29   0.769    -.4259816    .3148445
 _Isector_18 |  -.2077352   .1407428    -1.48   0.140    -.4837921    .0683216
 _Isector_19 |  -1.005263   .2983246    -3.37   0.001    -1.590405   -.4201205
 _Isector_20 |  -.1570029   .1479819    -1.06   0.289    -.4472589    .1332531
 _Isector_21 |  -.6717962   .3181814    -2.11   0.035    -1.295886   -.0477061
 _Isector_22 |  -.1444961   .0980564    -1.47   0.141    -.3368267    .0478346
 _Isector_23 |          0  (omitted)
 _Isector_24 |  -.3610902    .238321    -1.52   0.130    -.8285398    .1063594
 _Isector_25 |  -.0477126   .0923318    -0.52   0.605    -.2288149    .1333897
 _Isector_26 |  -.0864596    .115531    -0.75   0.454    -.3130654    .1401462
 _Isector_27 |   -.320735   .1676362    -1.91   0.056    -.6495413    .0080714
 _Isector_28 |          0  (omitted)
 _Isector_29 |  -.2336593   .1614285    -1.45   0.148    -.5502897    .0829712
 _Isector_30 |          0  (omitted)
 _Isector_31 |          0  (omitted)
 _Isector_32 |          0  (omitted)
 _Isector_33 |          0  (omitted)
 _Isector_34 |          0  (omitted)
 _Isector_35 |  -.8504733    .428819    -1.98   0.048    -1.691571   -.0093754
 _Isector_36 |          0  (omitted)
 _Isector_37 |          0  (omitted)
 _Isector_38 |          0  (omitted)
 _Isector_39 |   -.224257     .13724    -1.63   0.102    -.4934435    .0449295
 _Isector_40 |  -.0653765   .1892209    -0.35   0.730    -.4365197    .3057667
 _Isector_41 |  -.2251417   .1047121    -2.15   0.032     -.430527   -.0197564
 _Isector_42 |   .1477576   .1879259     0.79   0.432    -.2208457    .5163609
 _Isector_43 |          0  (omitted)
 _Isector_44 |          0  (omitted)
 _Isector_45 |          0  (omitted)
 _Isector_46 |          0  (omitted)
   _Ieduc_32 |          0  (omitted)
   _Ieduc_33 |          0  (omitted)
   _Ieduc_35 |   .0122401   .0384904     0.32   0.751     -.063256    .0877362
   _Ieduc_36 |          0  (omitted)
   _Ieduc_37 |          0  (omitted)
   _Ieduc_38 |          0  (omitted)
   _Ieduc_53 |          0  (omitted)
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |  -.0852595   .3731306    -0.23   0.819    -.8171285    .6466095
   _Ieduc_56 |          0  (omitted)
   _Ieduc_57 |          0  (omitted)
   _Ieduc_63 |          0  (omitted)
   _Ieduc_64 |          0  (omitted)
   _Ieduc_65 |   .4751969    .370815     1.28   0.200    -.2521302    1.202524
   _Ieduc_66 |          0  (omitted)
   _Ieduc_72 |          0  (omitted)
   _Ieduc_73 |          0  (omitted)
   _Ieduc_74 |    .548677   .3653612     1.50   0.133    -.1679528    1.265307
   _Ieduc_75 |   .8597946   .2870278     3.00   0.003     .2968101    1.422779
   _Ieduc_76 |          0  (omitted)
   _Ieduc_77 |          0  (omitted)
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |   .5545521   .3631211     1.53   0.127    -.1576841    1.266788
   _Ieduc_85 |   .8221619   .2889827     2.85   0.004      .255343    1.388981
   _Ieduc_86 |          0  (omitted)
   _Ieduc_87 |          0  (omitted)
   _Ieduc_99 |    .222977   .0874579     2.55   0.011     .0514346    .3945194
   _Inuts2_2 |  -.1262227   .1148354    -1.10   0.272    -.3514641    .0990186
   _Inuts2_3 |   .0480475   .0689755     0.70   0.486     -.087243     .183338
   _Inuts2_4 |   .0337237   .0825216     0.41   0.683    -.1281365    .1955839
   _Inuts2_5 |  -.0405813   .0813708    -0.50   0.618    -.2001843    .1190216
   _Inuts2_6 |          0  (omitted)
        pats |    .035567   .0137803     2.58   0.010      .008538    .0625961
     lagpats |   .0080089   .0277999     0.29   0.773    -.0465187    .0625365
     lagpat2 |   .0014485   .0193667     0.07   0.940    -.0365379    .0394349
     lagpat3 |   .0048709   .0196827     0.25   0.805    -.0337353    .0434771
     lagpat4 |    .037011   .0206512     1.79   0.073    -.0034948    .0775168
     lagpat5 |   .0356315   .0150992     2.36   0.018     .0060155    .0652476
     lagpat6 |   .0463848   .0189358     2.45   0.014     .0092435     .083526
      rd_int |  -.0067985   .0074081    -0.92   0.359    -.0213289    .0077319
       _cons |   6.419521   .9462998     6.78   0.000     4.563422     8.27562
-------------+----------------------------------------------------------------
     sigma_u |   .5224028
     sigma_e |  .24489383
         rho |  .81983475   (fraction of variance due to u_i)
------------------------------------------------------------------------------

.  /* TABLE 6 col 4*/
> xi: xtreg logwage $expl_17 rd_int,  fe robust  ;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: female omitted because of collinearity
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Ivuosi_1996 omitted because of collinearity
note: _Ivuosi_1997 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_2 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_7 omitted because of collinearity
note: _Isector_8 omitted because of collinearity
note: _Isector_9 omitted because of collinearity
note: _Isector_11 omitted because of collinearity
note: _Isector_15 omitted because of collinearity
note: _Isector_23 omitted because of collinearity
note: _Isector_28 omitted because of collinearity
note: _Isector_30 omitted because of collinearity
note: _Isector_31 omitted because of collinearity
note: _Isector_32 omitted because of collinearity
note: _Isector_33 omitted because of collinearity
note: _Isector_34 omitted because of collinearity
note: _Isector_36 omitted because of collinearity
note: _Isector_37 omitted because of collinearity
note: _Isector_38 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Isector_44 omitted because of collinearity
note: _Isector_45 omitted because of collinearity
note: _Isector_46 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_64 omitted because of collinearity
note: _Ieduc_66 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_73 omitted because of collinearity
note: _Ieduc_76 omitted because of collinearity
note: _Ieduc_77 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity
note: _Ieduc_86 omitted because of collinearity
note: _Ieduc_87 omitted because of collinearity
note: _Inuts2_6 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =      3709
Group variable: id                              Number of groups   =      1622

R-sq:  within  = 0.1009                         Obs per group: min =         1
       between = 0.1100                                        avg =       2.3
       overall = 0.1234                                        max =         3

                                                F(37,1621)         =         .
corr(u_i, Xb)  = -0.5808                        Prob > F           =         .

                                  (Std. Err. adjusted for 1622 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .1429165   .0392684     3.64   0.000     .0658943    .2199386
        age2 |  -.0012958   .0003969    -3.26   0.001    -.0020742   -.0005173
      tenure |    .006559   .0019486     3.37   0.001      .002737     .010381
      female |          0  (omitted)
      months |  -7.07e-06    .005178    -0.00   0.999    -.0101633    .0101492
         emp |   .0035556   .0019436     1.83   0.068    -.0002567    .0073679
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |          0  (omitted)
_Ivuosi_1995 |          0  (omitted)
_Ivuosi_1996 |          0  (omitted)
_Ivuosi_1997 |          0  (omitted)
_Ivuosi_1998 |   .0224061   .0074842     2.99   0.003     .0077263    .0370859
_Ivuosi_1999 |          0  (omitted)
  _Isector_2 |          0  (omitted)
  _Isector_3 |          0  (omitted)
  _Isector_4 |   .0176855   .0149682     1.18   0.238    -.0116735    .0470446
  _Isector_5 |  -.2954257    .289343    -1.02   0.307    -.8629513       .2721
  _Isector_6 |          0  (omitted)
  _Isector_7 |          0  (omitted)
  _Isector_8 |          0  (omitted)
  _Isector_9 |          0  (omitted)
 _Isector_10 |  -.1932837   .2413249    -0.80   0.423    -.6666252    .2800578
 _Isector_11 |          0  (omitted)
 _Isector_12 |  -.2783013   .1507806    -1.85   0.065    -.5740467    .0174441
 _Isector_13 |  -.0512659   .0702093    -0.73   0.465    -.1889764    .0864447
 _Isector_14 |  -.2249049   .1814592    -1.24   0.215    -.5808242    .1310143
 _Isector_15 |          0  (omitted)
 _Isector_16 |  -.1672658   .1852827    -0.90   0.367    -.5306846    .1961529
 _Isector_17 |  -.0708885   .1886417    -0.38   0.707    -.4408957    .2991186
 _Isector_18 |  -.2070145   .1384678    -1.50   0.135    -.4786092    .0645801
 _Isector_19 |  -.9693897   .2787148    -3.48   0.001    -1.516069   -.4227106
 _Isector_20 |  -.1688321    .147193    -1.15   0.252    -.4575406    .1198764
 _Isector_21 |  -.6707535   .3173528    -2.11   0.035    -1.293218   -.0482887
 _Isector_22 |  -.1586633   .0987588    -1.61   0.108    -.3523717     .035045
 _Isector_23 |          0  (omitted)
 _Isector_24 |  -.3679351   .2369489    -1.55   0.121    -.8326936    .0968233
 _Isector_25 |  -.0656777   .0871722    -0.75   0.451    -.2366597    .1053044
 _Isector_26 |  -.1069677   .1105524    -0.97   0.333    -.3238084     .109873
 _Isector_27 |  -.3197051   .1604109    -1.99   0.046    -.6343396   -.0050706
 _Isector_28 |          0  (omitted)
 _Isector_29 |  -.2475059    .160686    -1.54   0.124      -.56268    .0676683
 _Isector_30 |          0  (omitted)
 _Isector_31 |          0  (omitted)
 _Isector_32 |          0  (omitted)
 _Isector_33 |          0  (omitted)
 _Isector_34 |          0  (omitted)
 _Isector_35 |  -.8712746   .4240435    -2.05   0.040    -1.703006   -.0395436
 _Isector_36 |          0  (omitted)
 _Isector_37 |          0  (omitted)
 _Isector_38 |          0  (omitted)
 _Isector_39 |  -.2213248   .1303855    -1.70   0.090    -.4770666    .0344171
 _Isector_40 |  -.0817065   .1900465    -0.43   0.667    -.4544691    .2910561
 _Isector_41 |  -.2472563   .1070912    -2.31   0.021     -.457308   -.0372045
 _Isector_42 |   .1342683   .1847717     0.73   0.468    -.2281483    .4966849
 _Isector_43 |          0  (omitted)
 _Isector_44 |          0  (omitted)
 _Isector_45 |          0  (omitted)
 _Isector_46 |          0  (omitted)
   _Ieduc_32 |          0  (omitted)
   _Ieduc_33 |          0  (omitted)
   _Ieduc_35 |   .0121355   .0336593     0.36   0.718    -.0538848    .0781559
   _Ieduc_36 |          0  (omitted)
   _Ieduc_37 |          0  (omitted)
   _Ieduc_38 |          0  (omitted)
   _Ieduc_53 |          0  (omitted)
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |  -.1005616   .3631692    -0.28   0.782    -.8128921    .6117689
   _Ieduc_56 |          0  (omitted)
   _Ieduc_57 |          0  (omitted)
   _Ieduc_63 |          0  (omitted)
   _Ieduc_64 |          0  (omitted)
   _Ieduc_65 |   .4642091   .3650311     1.27   0.204    -.2517734    1.180192
   _Ieduc_66 |          0  (omitted)
   _Ieduc_72 |          0  (omitted)
   _Ieduc_73 |          0  (omitted)
   _Ieduc_74 |   .5426644   .3594173     1.51   0.131    -.1623069    1.247636
   _Ieduc_75 |   .8421287   .2838547     2.97   0.003     .2853679    1.398889
   _Ieduc_76 |          0  (omitted)
   _Ieduc_77 |          0  (omitted)
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |   .5348508   .3593866     1.49   0.137    -.1700604    1.239762
   _Ieduc_85 |   .8007307     .28558     2.80   0.005      .240586    1.360875
   _Ieduc_86 |          0  (omitted)
   _Ieduc_87 |          0  (omitted)
   _Ieduc_99 |   .2075387   .0864993     2.40   0.017     .0378765    .3772008
   _Inuts2_2 |  -.1373117   .1156617    -1.19   0.235    -.3641738    .0895505
   _Inuts2_3 |   .0338798   .0664311     0.51   0.610      -.09642    .1641796
   _Inuts2_4 |   .0450538   .0812804     0.55   0.579    -.1143718    .2044794
   _Inuts2_5 |  -.0429874   .0768833    -0.56   0.576    -.1937884    .1078136
   _Inuts2_6 |          0  (omitted)
        pats |    .033906   .0120995     2.80   0.005     .0101736    .0576383
     lagcits |   .0005895   .0015321     0.38   0.700    -.0024157    .0035946
     lagcit2 |  -.0005673   .0014091    -0.40   0.687    -.0033312    .0021967
     lagcit3 |   .0009516   .0013397     0.71   0.478    -.0016761    .0035794
     lagcit4 |   .0034991   .0014783     2.37   0.018     .0005994    .0063988
     lagcit5 |   .0025299   .0009734     2.60   0.009     .0006206    .0044392
     lagcit6 |   .0043801   .0024181     1.81   0.070    -.0003628    .0091231
      rd_int |   -.006723   .0074091    -0.91   0.364    -.0212555    .0078096
       _cons |   6.490456   .9800028     6.62   0.000      4.56825    8.412661
-------------+----------------------------------------------------------------
     sigma_u |  .51752098
     sigma_e |  .24385049
         rho |  .81831748   (fraction of variance due to u_i)
------------------------------------------------------------------------------

.  /* TABLE 7 col 4 */
> xi: xtreg logwage $expl_0 $expl_cg rd_int,  fe robust  ;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: female omitted because of collinearity
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Ivuosi_1996 omitted because of collinearity
note: _Ivuosi_1997 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_2 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_7 omitted because of collinearity
note: _Isector_8 omitted because of collinearity
note: _Isector_9 omitted because of collinearity
note: _Isector_11 omitted because of collinearity
note: _Isector_15 omitted because of collinearity
note: _Isector_23 omitted because of collinearity
note: _Isector_28 omitted because of collinearity
note: _Isector_30 omitted because of collinearity
note: _Isector_31 omitted because of collinearity
note: _Isector_32 omitted because of collinearity
note: _Isector_33 omitted because of collinearity
note: _Isector_34 omitted because of collinearity
note: _Isector_36 omitted because of collinearity
note: _Isector_37 omitted because of collinearity
note: _Isector_38 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Isector_44 omitted because of collinearity
note: _Isector_45 omitted because of collinearity
note: _Isector_46 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_64 omitted because of collinearity
note: _Ieduc_66 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_73 omitted because of collinearity
note: _Ieduc_76 omitted because of collinearity
note: _Ieduc_77 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity
note: _Ieduc_86 omitted because of collinearity
note: _Ieduc_87 omitted because of collinearity
note: _Inuts2_6 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =      3709
Group variable: id                              Number of groups   =      1622

R-sq:  within  = 0.1161                         Obs per group: min =         1
       between = 0.1088                                        avg =       2.3
       overall = 0.1234                                        max =         3

                                                F(65,1621)         =         .
corr(u_i, Xb)  = -0.6024                        Prob > F           =         .

                                  (Std. Err. adjusted for 1622 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .1499636   .0381127     3.93   0.000     .0752081     .224719
        age2 |  -.0013557   .0003981    -3.41   0.001    -.0021366   -.0005749
      tenure |   .0071207   .0021004     3.39   0.001      .003001    .0112404
      female |          0  (omitted)
      months |   .0001818   .0054159     0.03   0.973    -.0104412    .0108047
         emp |   .0033988   .0019899     1.71   0.088    -.0005043     .007302
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |          0  (omitted)
_Ivuosi_1995 |          0  (omitted)
_Ivuosi_1996 |          0  (omitted)
_Ivuosi_1997 |          0  (omitted)
_Ivuosi_1998 |   .0213039   .0077797     2.74   0.006     .0060447    .0365632
_Ivuosi_1999 |          0  (omitted)
  _Isector_2 |          0  (omitted)
  _Isector_3 |          0  (omitted)
  _Isector_4 |  -.0146448   .0208073    -0.70   0.482    -.0554569    .0261673
  _Isector_5 |  -.3562394   .2834107    -1.26   0.209    -.9121291    .1996504
  _Isector_6 |          0  (omitted)
  _Isector_7 |          0  (omitted)
  _Isector_8 |          0  (omitted)
  _Isector_9 |          0  (omitted)
 _Isector_10 |  -.1533879   .2687158    -0.57   0.568    -.6804546    .3736788
 _Isector_11 |          0  (omitted)
 _Isector_12 |  -.2753912   .1599366    -1.72   0.085    -.5890953    .0383129
 _Isector_13 |  -.0664346    .074791    -0.89   0.375    -.2131318    .0802627
 _Isector_14 |  -.2906743   .1719329    -1.69   0.091    -.6279084    .0465598
 _Isector_15 |          0  (omitted)
 _Isector_16 |  -.1615709   .1816997    -0.89   0.374     -.517962    .1948201
 _Isector_17 |  -.0791617   .1966636    -0.40   0.687    -.4649032    .3065799
 _Isector_18 |  -.2294079   .1356913    -1.69   0.091    -.4955567     .036741
 _Isector_19 |  -.9856983   .2764462    -3.57   0.000    -1.527928   -.4434689
 _Isector_20 |  -.1043948   .1330663    -0.78   0.433    -.3653949    .1566053
 _Isector_21 |  -.7073501   .3170321    -2.23   0.026    -1.329186   -.0855144
 _Isector_22 |  -.1587952   .0974343    -1.63   0.103    -.3499055    .0323151
 _Isector_23 |          0  (omitted)
 _Isector_24 |  -.3933155    .239168    -1.64   0.100    -.8624265    .0757955
 _Isector_25 |   -.080159   .1095782    -0.73   0.465    -.2950888    .1347708
 _Isector_26 |  -.0532645    .126554    -0.42   0.674    -.3014912    .1949622
 _Isector_27 |  -.2851959   .1593957    -1.79   0.074    -.5978391    .0274474
 _Isector_28 |          0  (omitted)
 _Isector_29 |   -.283901   .1566297    -1.81   0.070     -.591119    .0233169
 _Isector_30 |          0  (omitted)
 _Isector_31 |          0  (omitted)
 _Isector_32 |          0  (omitted)
 _Isector_33 |          0  (omitted)
 _Isector_34 |          0  (omitted)
 _Isector_35 |  -.8766465   .4198135    -2.09   0.037    -1.700081   -.0532122
 _Isector_36 |          0  (omitted)
 _Isector_37 |          0  (omitted)
 _Isector_38 |          0  (omitted)
 _Isector_39 |  -.3074734   .1294194    -2.38   0.018    -.5613202   -.0536265
 _Isector_40 |     -.0611   .2047819    -0.30   0.765     -.462765    .3405651
 _Isector_41 |  -.2684493   .1039025    -2.58   0.010    -.4722467   -.0646519
 _Isector_42 |   .1237263   .1843728     0.67   0.502    -.2379077    .4853604
 _Isector_43 |          0  (omitted)
 _Isector_44 |          0  (omitted)
 _Isector_45 |          0  (omitted)
 _Isector_46 |          0  (omitted)
   _Ieduc_32 |          0  (omitted)
   _Ieduc_33 |          0  (omitted)
   _Ieduc_35 |   .0568809    .065395     0.87   0.385    -.0713868    .1851485
   _Ieduc_36 |          0  (omitted)
   _Ieduc_37 |          0  (omitted)
   _Ieduc_38 |          0  (omitted)
   _Ieduc_53 |          0  (omitted)
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |  -.0912514   .3683498    -0.25   0.804    -.8137433    .6312405
   _Ieduc_56 |          0  (omitted)
   _Ieduc_57 |          0  (omitted)
   _Ieduc_63 |          0  (omitted)
   _Ieduc_64 |          0  (omitted)
   _Ieduc_65 |   .4691583   .3684099     1.27   0.203    -.2534514    1.191768
   _Ieduc_66 |          0  (omitted)
   _Ieduc_72 |          0  (omitted)
   _Ieduc_73 |          0  (omitted)
   _Ieduc_74 |   .5637898   .3654747     1.54   0.123    -.1530628    1.280642
   _Ieduc_75 |   .8738096    .291697     3.00   0.003     .3016669    1.445952
   _Ieduc_76 |          0  (omitted)
   _Ieduc_77 |          0  (omitted)
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |   .5953623     .36608     1.63   0.104    -.1226775    1.313402
   _Ieduc_85 |   .7996321   .2957315     2.70   0.007     .2195759    1.379688
   _Ieduc_86 |          0  (omitted)
   _Ieduc_87 |          0  (omitted)
   _Ieduc_99 |    .238878   .1139399     2.10   0.036      .015393     .462363
   _Inuts2_2 |  -.1279657    .102384    -1.25   0.212    -.3287845    .0728532
   _Inuts2_3 |   .0153772   .0931268     0.17   0.869    -.1672844    .1980387
   _Inuts2_4 |   .0086045   .0775145     0.11   0.912    -.1434347    .1606436
   _Inuts2_5 |  -.0275994   .0678185    -0.41   0.684    -.1606205    .1054217
   _Inuts2_6 |          0  (omitted)
      nocits |  -.0049431   .0365241    -0.14   0.892    -.0765824    .0666962
      cits10 |   .0052119   .0221634     0.24   0.814      -.03826    .0486838
      cits20 |  -.0004713   .0189288    -0.02   0.980    -.0375987    .0366561
      cits30 |  -.0067817   .0518622    -0.13   0.896    -.1085057    .0949424
     topcits |   .2299291    .098305     2.34   0.019     .0371108    .4227473
      lagnoc |  -.0423086   .0573387    -0.74   0.461    -.1547744    .0701572
      lag10c |   -.011564   .0350847    -0.33   0.742    -.0803801    .0572521
      lag20c |  -.0276351   .0281159    -0.98   0.326    -.0827824    .0275122
      lag30c |  -.0898492   .1484447    -0.61   0.545    -.3810128    .2013144
     lagtopc |   .1585098   .0857787     1.85   0.065    -.0097389    .3267585
     lagnoc2 |  -.1014339   .0775666    -1.31   0.191    -.2535754    .0507075
     lag10c2 |   .0234901    .031831     0.74   0.461    -.0389442    .0859243
     lag20c2 |  -.0448146   .0286997    -1.56   0.119    -.1011069    .0114778
     lag30c2 |  -.1760863   .1377044    -1.28   0.201    -.4461836     .094011
    lagtopc2 |   .1128315   .0829063     1.36   0.174    -.0497833    .2754462
     lagnoc3 |  -.0560126   .0620804    -0.90   0.367    -.1777789    .0657536
     lag10c3 |   .0082909    .025312     0.33   0.743    -.0413568    .0579386
     lag20c3 |    -.02063   .0373586    -0.55   0.581    -.0939062    .0526462
     lag30c3 |  -.1869446   .1471459    -1.27   0.204    -.4755608    .1016717
     lagtop3 |   .2134144   .0732967     2.91   0.004     .0696481    .3571807
     lagnoc4 |  -.0672676   .0585372    -1.15   0.251    -.1820842     .047549
     lag10c4 |   -.013911   .0285073    -0.49   0.626     -.069826     .042004
     lag20c4 |   -.048384   .0405551    -1.19   0.233      -.12793    .0311619
     lag30c4 |  -.0324661   .0984169    -0.33   0.742    -.2255038    .1605716
    lagtopc4 |   .3420853   .1022991     3.34   0.001     .1414329    .5427378
     lagnoc5 |   -.033475   .0579789    -0.58   0.564    -.1471966    .0802465
     lag10c5 |   .0305381   .0251708     1.21   0.225    -.0188327    .0799088
     lag20c5 |  -.0221334   .0562009    -0.39   0.694    -.1323675    .0881007
     lag30c5 |  -.0225837   .0969519    -0.23   0.816     -.212748    .1675805
    lagtopc5 |   .2209122   .0859378     2.57   0.010     .0523513    .3894731
     lagnoc6 |   .0001323   .0505553     0.00   0.998    -.0990282    .0992928
     lag10c6 |   .0353571   .0264193     1.34   0.181    -.0164625    .0871767
     lag20c6 |    .004844   .0204645     0.24   0.813    -.0352956    .0449836
     lag30c6 |   .0559292   .0491737     1.14   0.256    -.0405214    .1523799
    lagtopc6 |   .3059023   .1524215     2.01   0.045     .0069385    .6048661
      rd_int |   -.007452    .007404    -1.01   0.314    -.0219744    .0070704
       _cons |   6.304094   .9105052     6.92   0.000     4.518203    8.089985
-------------+----------------------------------------------------------------
     sigma_u |  .52749615
     sigma_e |  .24345506
         rho |  .82439584   (fraction of variance due to u_i)
------------------------------------------------------------------------------

.  /* TABLE 8 col 4 */
> 
> 
> *-----------------------------------------------------------------------;
. *individual assigned patents v firm assigned;
. *-----------------------------------------------------------------------;
. sum nocits if pats_indi!=0;

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
      nocits |       127    .2834646    .4524648          0          1

. sum cits10 if pats_indi!=0;

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
      cits10 |       127     .503937    .5019646          0          1

. sum cits20 if pats_indi!=0;

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
      cits20 |       127    .1259843    .3331458          0          1

. sum cits30 if pats_indi!=0;

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
      cits30 |       127     .023622      .15247          0          1

. sum topcits if pats_indi!=0;

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
     topcits |       127    .0629921     .243911          0          1

. sum nocits if pats_indi==0;

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
      nocits |     15869    .0335875    .1801705          0          1

. sum cits10 if pats_indi==0;

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
      cits10 |     15869    .0773836    .2672075          0          1

. sum cits20 if pats_indi==0;

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
      cits20 |     15869    .0334615    .1798439          0          1

. sum cits30 if pats_indi==0;

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
      cits30 |     15869    .0155019    .1235418          0          1

. sum topcits if pats_indi==0;

    Variable |       Obs        Mean    Std. Dev.       Min        Max
-------------+--------------------------------------------------------
     topcits |     15869    .0212994     .144385          0          1

. gen patsff=pats-pats_indi;

. gen lpatff=lagpats-lagpatsi;
(1835 missing values generated)

. gen lpatf2=lagpat2-lagpat2i;
(3539 missing values generated)

. gen lpatf3=lagpat3-lagpat3i;
(5202 missing values generated)

. gen lpatf4=lagpat4-lagpat4i;
(7084 missing values generated)

. gen lpatf5=lagpat5-lagpat5i;
(8920 missing values generated)

. gen lpatf6=lagpat6-lagpat6i;
(10750 missing values generated)

. gen citsff=cits-cits_indi;

. gen lcitff=lagcits-lagcitsi;
(1835 missing values generated)

. gen lcitf2=lagcit2-lagcit2i;
(3539 missing values generated)

. gen lcitf3=lagcit3-lagcit3i;
(5202 missing values generated)

. gen lcitf4=lagcit4-lagcit4i;
(7084 missing values generated)

. gen lcitf5=lagcit5-lagcit5i;
(8920 missing values generated)

. gen lcitf6=lagcit6-lagcit6i;
(10750 missing values generated)

. /* TABLE 10 */
> xi: xtreg logwage $expl_0 pats_indi lagpatsi lagpat2i lagpat3i lagpat4i lagpat5i lagpat6i patsff
>  lpatff lpatf2 lpatf3 lpatf4 lpatf5 lpatf6, fe robust  ;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: female omitted because of collinearity
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Ivuosi_1996 omitted because of collinearity
note: _Ivuosi_1997 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_2 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_7 omitted because of collinearity
note: _Isector_8 omitted because of collinearity
note: _Isector_11 omitted because of collinearity
note: _Isector_15 omitted because of collinearity
note: _Isector_23 omitted because of collinearity
note: _Isector_28 omitted because of collinearity
note: _Isector_32 omitted because of collinearity
note: _Isector_33 omitted because of collinearity
note: _Isector_34 omitted because of collinearity
note: _Isector_36 omitted because of collinearity
note: _Isector_37 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Isector_45 omitted because of collinearity
note: _Isector_46 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_64 omitted because of collinearity
note: _Ieduc_66 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_73 omitted because of collinearity
note: _Ieduc_76 omitted because of collinearity
note: _Ieduc_77 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity
note: _Ieduc_86 omitted because of collinearity
note: _Ieduc_87 omitted because of collinearity
note: _Inuts2_6 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =      4938
Group variable: id                              Number of groups   =      1789

R-sq:  within  = 0.0790                         Obs per group: min =         1
       between = 0.0589                                        avg =       2.8
       overall = 0.0541                                        max =         3

                                                F(51,1788)         =         .
corr(u_i, Xb)  = -0.6628                        Prob > F           =         .

                                  (Std. Err. adjusted for 1789 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .2037815   .0485568     4.20   0.000     .1085474    .2990156
        age2 |  -.0016887   .0004977    -3.39   0.001    -.0026649   -.0007126
      tenure |    .008166   .0022174     3.68   0.000      .003817    .0125151
      female |          0  (omitted)
      months |   .0063899   .0037606     1.70   0.089    -.0009856    .0137655
         emp |    .004187   .0009941     4.21   0.000     .0022373    .0061368
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |          0  (omitted)
_Ivuosi_1995 |          0  (omitted)
_Ivuosi_1996 |          0  (omitted)
_Ivuosi_1997 |          0  (omitted)
_Ivuosi_1998 |   .0274124    .010148     2.70   0.007     .0075092    .0473157
_Ivuosi_1999 |          0  (omitted)
  _Isector_2 |          0  (omitted)
  _Isector_3 |          0  (omitted)
  _Isector_4 |   .0400105   .0188707     2.12   0.034     .0029997    .0770214
  _Isector_5 |  -.3049351   .1937883    -1.57   0.116    -.6850104    .0751402
  _Isector_6 |          0  (omitted)
  _Isector_7 |          0  (omitted)
  _Isector_8 |          0  (omitted)
  _Isector_9 |   .1150651   .2676764     0.43   0.667    -.4099265    .6400566
 _Isector_10 |  -.4129439   .2458207    -1.68   0.093      -.89507    .0691823
 _Isector_11 |          0  (omitted)
 _Isector_12 |  -.1534581   .1331754    -1.15   0.249     -.414654    .1077378
 _Isector_13 |   .0408725   .1129841     0.36   0.718    -.1807222    .2624672
 _Isector_14 |  -.2036991   .1372858    -1.48   0.138    -.4729566    .0655583
 _Isector_15 |          0  (omitted)
 _Isector_16 |  -.2477337   .1546126    -1.60   0.109    -.5509742    .0555068
 _Isector_17 |  -.0306221   .2156304    -0.14   0.887    -.4535363     .392292
 _Isector_18 |  -.0946404   .1313323    -0.72   0.471    -.3522215    .1629406
 _Isector_19 |  -.0877386    .209132    -0.42   0.675    -.4979075    .3224302
 _Isector_20 |   .0078344   .1466455     0.05   0.957    -.2797801     .295449
 _Isector_21 |  -.3479905   .2411344    -1.44   0.149    -.8209254    .1249444
 _Isector_22 |  -.0177826    .128739    -0.14   0.890    -.2702774    .2347122
 _Isector_23 |          0  (omitted)
 _Isector_24 |  -.2124626   .1674738    -1.27   0.205    -.5409275    .1160023
 _Isector_25 |   .0326442   .1189984     0.27   0.784    -.2007464    .2660347
 _Isector_26 |   .0341683   .1319396     0.26   0.796    -.2246037    .2929404
 _Isector_27 |   .0227429   .1654267     0.14   0.891    -.3017071     .347193
 _Isector_28 |          0  (omitted)
 _Isector_29 |  -.1032855   .1318246    -0.78   0.433     -.361832     .155261
 _Isector_30 |   .0471648   .1398716     0.34   0.736    -.2271643    .3214939
 _Isector_31 |   .4057048   .1392032     2.91   0.004     .1326866    .6787229
 _Isector_32 |          0  (omitted)
 _Isector_33 |          0  (omitted)
 _Isector_34 |          0  (omitted)
 _Isector_35 |  -.1148775   .2300015    -0.50   0.618    -.5659775    .3362224
 _Isector_36 |          0  (omitted)
 _Isector_37 |          0  (omitted)
 _Isector_38 |   .1514307   .1667763     0.91   0.364    -.1756663    .4785277
 _Isector_39 |   .0110834   .1431666     0.08   0.938    -.2697081    .2918749
 _Isector_40 |  -.1259601   .2076223    -0.61   0.544    -.5331679    .2812477
 _Isector_41 |  -.0108181   .1215609    -0.09   0.929    -.2492344    .2275982
 _Isector_42 |  -.0307821   .1328268    -0.23   0.817    -.2912943      .22973
 _Isector_43 |          0  (omitted)
 _Isector_44 |   1.873956   .6676382     2.81   0.005     .5645224    3.183389
 _Isector_45 |          0  (omitted)
 _Isector_46 |          0  (omitted)
   _Ieduc_32 |          0  (omitted)
   _Ieduc_33 |          0  (omitted)
   _Ieduc_35 |  -.0216566   .0389584    -0.56   0.578    -.0980654    .0547523
   _Ieduc_36 |          0  (omitted)
   _Ieduc_37 |          0  (omitted)
   _Ieduc_38 |          0  (omitted)
   _Ieduc_53 |          0  (omitted)
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |   .8575084   .3333419     2.57   0.010     .2037278    1.511289
   _Ieduc_56 |          0  (omitted)
   _Ieduc_57 |          0  (omitted)
   _Ieduc_63 |          0  (omitted)
   _Ieduc_64 |          0  (omitted)
   _Ieduc_65 |   .9789455   .2858271     3.42   0.001     .4183552    1.539536
   _Ieduc_66 |          0  (omitted)
   _Ieduc_72 |          0  (omitted)
   _Ieduc_73 |          0  (omitted)
   _Ieduc_74 |    1.01914   .2823626     3.61   0.000     .4653444    1.572935
   _Ieduc_75 |   1.056023    .226403     4.66   0.000     .6119806    1.500065
   _Ieduc_76 |          0  (omitted)
   _Ieduc_77 |          0  (omitted)
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |   1.031049   .2823733     3.65   0.000     .4772331    1.584866
   _Ieduc_85 |    1.09846   .2443841     4.49   0.000     .6191516    1.577769
   _Ieduc_86 |          0  (omitted)
   _Ieduc_87 |          0  (omitted)
   _Ieduc_99 |   .2396135   .1111479     2.16   0.031       .02162    .4576071
   _Inuts2_2 |    -.27475    .193546    -1.42   0.156    -.6543501    .1048501
   _Inuts2_3 |  -.0418818   .1334943    -0.31   0.754    -.3037031    .2199395
   _Inuts2_4 |  -.1564205   .1594457    -0.98   0.327      -.46914     .156299
   _Inuts2_5 |  -.1070957   .1089371    -0.98   0.326    -.3207532    .1065617
   _Inuts2_6 |          0  (omitted)
   pats_indi |  -.0757542   .0403017    -1.88   0.060    -.1547975    .0032891
    lagpatsi |  -.1271432   .0580987    -2.19   0.029    -.2410917   -.0131946
    lagpat2i |  -.0567641   .0779701    -0.73   0.467    -.2096863    .0961581
    lagpat3i |   .1087843   .1110419     0.98   0.327    -.1090013    .3265699
    lagpat4i |   .0392389     .08957     0.44   0.661    -.1364339    .2149118
    lagpat5i |   .2037314   .0890314     2.29   0.022     .0291148     .378348
    lagpat6i |   .3056226   .1616826     1.89   0.059    -.0114841    .6227293
      patsff |   .0250525   .0146299     1.71   0.087    -.0036409     .053746
      lpatff |  -.0027691   .0232564    -0.12   0.905    -.0483818    .0428436
      lpatf2 |  -.0232599   .0236369    -0.98   0.325    -.0696188    .0230989
      lpatf3 |   .0105399   .0212284     0.50   0.620    -.0310952     .052175
      lpatf4 |    .042505   .0212238     2.00   0.045     .0008789    .0841311
      lpatf5 |   .0509053   .0216948     2.35   0.019     .0083555    .0934552
      lpatf6 |   .0402672   .0165306     2.44   0.015     .0078458    .0726885
       _cons |   4.168144   1.201437     3.47   0.001     1.811775    6.524512
-------------+----------------------------------------------------------------
     sigma_u |  .68553002
     sigma_e |  .37899687
         rho |  .76590457   (fraction of variance due to u_i)
------------------------------------------------------------------------------

. xi: xtreg logwage $expl_0 cits_indi lagcitsi lagcit2i lagcit3i lagcit4i lagcit5i lagcit6i citsff
>  lcitff lcitf2 lcitf3 lcitf4 lcitf5 lcitf6, fe robust  ;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: female omitted because of collinearity
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Ivuosi_1996 omitted because of collinearity
note: _Ivuosi_1997 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_2 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_7 omitted because of collinearity
note: _Isector_8 omitted because of collinearity
note: _Isector_11 omitted because of collinearity
note: _Isector_15 omitted because of collinearity
note: _Isector_23 omitted because of collinearity
note: _Isector_28 omitted because of collinearity
note: _Isector_32 omitted because of collinearity
note: _Isector_33 omitted because of collinearity
note: _Isector_34 omitted because of collinearity
note: _Isector_36 omitted because of collinearity
note: _Isector_37 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Isector_45 omitted because of collinearity
note: _Isector_46 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_64 omitted because of collinearity
note: _Ieduc_66 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_73 omitted because of collinearity
note: _Ieduc_76 omitted because of collinearity
note: _Ieduc_77 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity
note: _Ieduc_86 omitted because of collinearity
note: _Ieduc_87 omitted because of collinearity
note: _Inuts2_6 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =      4938
Group variable: id                              Number of groups   =      1789

R-sq:  within  = 0.0819                         Obs per group: min =         1
       between = 0.0707                                        avg =       2.8
       overall = 0.0654                                        max =         3

                                                F(51,1788)         =         .
corr(u_i, Xb)  = -0.6473                        Prob > F           =         .

                                  (Std. Err. adjusted for 1789 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |    .178649   .0490399     3.64   0.000     .0824674    .2748306
        age2 |  -.0014265   .0005018    -2.84   0.005    -.0024108   -.0004423
      tenure |   .0078017   .0020994     3.72   0.000     .0036841    .0119193
      female |          0  (omitted)
      months |   .0047611   .0046137     1.03   0.302    -.0042877      .01381
         emp |   .0042498   .0009982     4.26   0.000     .0022921    .0062075
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |          0  (omitted)
_Ivuosi_1995 |          0  (omitted)
_Ivuosi_1996 |          0  (omitted)
_Ivuosi_1997 |          0  (omitted)
_Ivuosi_1998 |   .0249485   .0101849     2.45   0.014      .004973    .0449241
_Ivuosi_1999 |          0  (omitted)
  _Isector_2 |          0  (omitted)
  _Isector_3 |          0  (omitted)
  _Isector_4 |   .0410545   .0162819     2.52   0.012     .0091209    .0729882
  _Isector_5 |  -.2983562   .1997587    -1.49   0.135    -.6901413    .0934289
  _Isector_6 |          0  (omitted)
  _Isector_7 |          0  (omitted)
  _Isector_8 |          0  (omitted)
  _Isector_9 |   .1343006   .2623514     0.51   0.609    -.3802469    .6488481
 _Isector_10 |  -.4261156   .2269096    -1.88   0.061    -.8711515    .0189202
 _Isector_11 |          0  (omitted)
 _Isector_12 |  -.1769924   .1354553    -1.31   0.192    -.4426597    .0886748
 _Isector_13 |   .0281684   .1169992     0.24   0.810    -.2013011    .2576379
 _Isector_14 |  -.1043633   .1474219    -0.71   0.479    -.3935006    .1847741
 _Isector_15 |          0  (omitted)
 _Isector_16 |  -.2561866   .1533275    -1.67   0.095    -.5569065    .0445333
 _Isector_17 |  -.0437553   .2211101    -0.20   0.843    -.4774166    .3899061
 _Isector_18 |   -.088838   .1343933    -0.66   0.509    -.3524224    .1747464
 _Isector_19 |  -.0994962   .2067046    -0.48   0.630    -.5049042    .3059119
 _Isector_20 |   .0063487   .1471797     0.04   0.966    -.2823135     .295011
 _Isector_21 |  -.3639926   .2413303    -1.51   0.132    -.8373117    .1093265
 _Isector_22 |  -.0226151   .1326599    -0.17   0.865    -.2827999    .2375697
 _Isector_23 |          0  (omitted)
 _Isector_24 |  -.2261186   .1683966    -1.34   0.180    -.5563935    .1041563
 _Isector_25 |   .0049409   .1216536     0.04   0.968    -.2336574    .2435391
 _Isector_26 |  -.0213476   .1361422    -0.16   0.875    -.2883622     .245667
 _Isector_27 |   .0605625   .1660838     0.36   0.715    -.2651762    .3863012
 _Isector_28 |          0  (omitted)
 _Isector_29 |  -.1254092    .134632    -0.93   0.352    -.3894618    .1386435
 _Isector_30 |   .0335267   .1404405     0.24   0.811     -.241918    .3089715
 _Isector_31 |   .3506811   .1497697     2.34   0.019      .056939    .6444231
 _Isector_32 |          0  (omitted)
 _Isector_33 |          0  (omitted)
 _Isector_34 |          0  (omitted)
 _Isector_35 |  -.1229465   .2311874    -0.53   0.595    -.5763724    .3304794
 _Isector_36 |          0  (omitted)
 _Isector_37 |          0  (omitted)
 _Isector_38 |   .1371602   .1659515     0.83   0.409    -.1883191    .4626395
 _Isector_39 |  -.0079156   .1290112    -0.06   0.951    -.2609441    .2451129
 _Isector_40 |  -.0766241    .227919    -0.34   0.737    -.5236397    .3703916
 _Isector_41 |  -.0356215   .1247766    -0.29   0.775    -.2803448    .2091017
 _Isector_42 |  -.0381423   .1340886    -0.28   0.776    -.3011291    .2248446
 _Isector_43 |          0  (omitted)
 _Isector_44 |   2.011898   .7494614     2.68   0.007     .5419858    3.481811
 _Isector_45 |          0  (omitted)
 _Isector_46 |          0  (omitted)
   _Ieduc_32 |          0  (omitted)
   _Ieduc_33 |          0  (omitted)
   _Ieduc_35 |   -.058875   .0502463    -1.17   0.241    -.1574227    .0396727
   _Ieduc_36 |          0  (omitted)
   _Ieduc_37 |          0  (omitted)
   _Ieduc_38 |          0  (omitted)
   _Ieduc_53 |          0  (omitted)
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |   .8375942    .325416     2.57   0.010     .1993584     1.47583
   _Ieduc_56 |          0  (omitted)
   _Ieduc_57 |          0  (omitted)
   _Ieduc_63 |          0  (omitted)
   _Ieduc_64 |          0  (omitted)
   _Ieduc_65 |   .9864746   .2877731     3.43   0.001     .4220676    1.550882
   _Ieduc_66 |          0  (omitted)
   _Ieduc_72 |          0  (omitted)
   _Ieduc_73 |          0  (omitted)
   _Ieduc_74 |   1.043259   .2835698     3.68   0.000     .4870958    1.599422
   _Ieduc_75 |   1.042829   .2297585     4.54   0.000      .592206    1.493453
   _Ieduc_76 |          0  (omitted)
   _Ieduc_77 |          0  (omitted)
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |   1.046859    .287216     3.64   0.000     .4835442    1.610173
   _Ieduc_85 |   1.099732   .2570479     4.28   0.000     .5955858    1.603878
   _Ieduc_86 |          0  (omitted)
   _Ieduc_87 |          0  (omitted)
   _Ieduc_99 |   .1940645   .1170593     1.66   0.098     -.035523     .423652
   _Inuts2_2 |  -.2734596   .1920017    -1.42   0.155     -.650031    .1031118
   _Inuts2_3 |  -.0521839   .1376046    -0.38   0.705    -.3220667    .2176988
   _Inuts2_4 |  -.1425132   .1558481    -0.91   0.361    -.4481768    .1631505
   _Inuts2_5 |  -.0562947   .1216632    -0.46   0.644    -.2949118    .1823223
   _Inuts2_6 |          0  (omitted)
   cits_indi |  -.0088399   .0035095    -2.52   0.012     -.015723   -.0019568
    lagcitsi |  -.0201715   .0060909    -3.31   0.001    -.0321175   -.0082254
    lagcit2i |  -.0163698   .0089915    -1.82   0.069    -.0340047     .001265
    lagcit3i |   .0106539    .009925     1.07   0.283    -.0088119    .0301197
    lagcit4i |  -.0060137   .0053157    -1.13   0.258    -.0164394     .004412
    lagcit5i |   .0061385   .0040104     1.53   0.126     -.001727     .014004
    lagcit6i |    .008828    .006458     1.37   0.172     -.003838     .021494
      citsff |   .0019676    .001064     1.85   0.065    -.0001192    .0040545
      lcitff |  -4.50e-06   .0016409    -0.00   0.998    -.0032227    .0032137
      lcitf2 |   .0015491   .0018451     0.84   0.401    -.0020696    .0051679
      lcitf3 |   .0038585   .0020158     1.91   0.056    -.0000951    .0078122
      lcitf4 |   .0036072   .0019154     1.88   0.060    -.0001494    .0073638
      lcitf5 |   .0042703   .0018207     2.35   0.019     .0006994    .0078412
      lcitf6 |   .0047157    .002664     1.77   0.077    -.0005092    .0099406
       _cons |   4.767594   1.229774     3.88   0.000     2.355648    7.179541
-------------+----------------------------------------------------------------
     sigma_u |  .66919407
     sigma_e |  .37839954
         rho |  .75772498   (fraction of variance due to u_i)
------------------------------------------------------------------------------

. xi: xtreg logwage5 $expl_0 pats_indi lagpatsi lagpat2i lagpat3i lagpat4i lagpat5i lagpat6i patsf
> f lpatff lpatf2 lpatf3 lpatf4 lpatf5 lpatf6, fe robust  ;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: female omitted because of collinearity
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Ivuosi_1996 omitted because of collinearity
note: _Ivuosi_1997 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_2 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_7 omitted because of collinearity
note: _Isector_8 omitted because of collinearity
note: _Isector_11 omitted because of collinearity
note: _Isector_15 omitted because of collinearity
note: _Isector_23 omitted because of collinearity
note: _Isector_28 omitted because of collinearity
note: _Isector_32 omitted because of collinearity
note: _Isector_33 omitted because of collinearity
note: _Isector_34 omitted because of collinearity
note: _Isector_36 omitted because of collinearity
note: _Isector_37 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Isector_45 omitted because of collinearity
note: _Isector_46 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_64 omitted because of collinearity
note: _Ieduc_66 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_73 omitted because of collinearity
note: _Ieduc_76 omitted because of collinearity
note: _Ieduc_77 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity
note: _Ieduc_86 omitted because of collinearity
note: _Ieduc_87 omitted because of collinearity
note: _Inuts2_6 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =      4936
Group variable: id                              Number of groups   =      1789

R-sq:  within  = 0.0995                         Obs per group: min =         1
       between = 0.0309                                        avg =       2.8
       overall = 0.0335                                        max =         3

                                                F(51,1788)         =         .
corr(u_i, Xb)  = -0.7134                        Prob > F           =         .

                                  (Std. Err. adjusted for 1789 clusters in id)
------------------------------------------------------------------------------
             |               Robust
    logwage5 |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .2272229   .0419769     5.41   0.000      .144894    .3095518
        age2 |  -.0017646   .0004372    -4.04   0.000     -.002622   -.0009072
      tenure |   .0044398   .0022914     1.94   0.053    -.0000543    .0089339
      female |          0  (omitted)
      months |   .0083205   .0029639     2.81   0.005     .0025075    .0141336
         emp |   .0054416   .0009984     5.45   0.000     .0034835    .0073997
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |          0  (omitted)
_Ivuosi_1995 |          0  (omitted)
_Ivuosi_1996 |          0  (omitted)
_Ivuosi_1997 |          0  (omitted)
_Ivuosi_1998 |  -.0336356   .0087836    -3.83   0.000    -.0508628   -.0164085
_Ivuosi_1999 |          0  (omitted)
  _Isector_2 |          0  (omitted)
  _Isector_3 |          0  (omitted)
  _Isector_4 |    .016862   .0191548     0.88   0.379    -.0207063    .0544302
  _Isector_5 |  -.2337197   .1097979    -2.13   0.033    -.4490655   -.0183739
  _Isector_6 |          0  (omitted)
  _Isector_7 |          0  (omitted)
  _Isector_8 |          0  (omitted)
  _Isector_9 |   .2502119   .2626351     0.95   0.341    -.2648922     .765316
 _Isector_10 |  -.3904213   .2922014    -1.34   0.182    -.9635135    .1826709
 _Isector_11 |          0  (omitted)
 _Isector_12 |  -.2212984   .1000407    -2.21   0.027    -.4175074   -.0250894
 _Isector_13 |  -.0410026   .0770667    -0.53   0.595    -.1921529    .1101476
 _Isector_14 |  -.1718641   .1514614    -1.13   0.257     -.468924    .1251958
 _Isector_15 |          0  (omitted)
 _Isector_16 |   .0193816   .1976208     0.10   0.922    -.3682104    .4069736
 _Isector_17 |  -.0288379   .1827798    -0.16   0.875    -.3873223    .3296466
 _Isector_18 |   -.082549   .1031257    -0.80   0.424    -.2848085    .1197106
 _Isector_19 |  -.0798289   .1927717    -0.41   0.679    -.4579105    .2982527
 _Isector_20 |   .0317586   .1194452     0.27   0.790    -.2025082    .2660255
 _Isector_21 |  -.4623998   .2076971    -2.23   0.026    -.8697545   -.0550451
 _Isector_22 |  -.0378382   .1053481    -0.36   0.720    -.2444565    .1687802
 _Isector_23 |          0  (omitted)
 _Isector_24 |  -.1587388   .1645063    -0.96   0.335    -.4813837    .1639061
 _Isector_25 |  -.0885281   .0852955    -1.04   0.299    -.2558174    .0787612
 _Isector_26 |   -.018345   .1054525    -0.17   0.862    -.2251681     .188478
 _Isector_27 |  -.0034074   .1229404    -0.03   0.978    -.2445294    .2377146
 _Isector_28 |          0  (omitted)
 _Isector_29 |  -.0922302   .1107322    -0.83   0.405    -.3094083    .1249479
 _Isector_30 |  -.2003828   .1054224    -1.90   0.057    -.4071468    .0063813
 _Isector_31 |   .0424729   .1024139     0.41   0.678    -.1583906    .2433364
 _Isector_32 |          0  (omitted)
 _Isector_33 |          0  (omitted)
 _Isector_34 |          0  (omitted)
 _Isector_35 |  -.1177723   .2079879    -0.57   0.571    -.5256971    .2901526
 _Isector_36 |          0  (omitted)
 _Isector_37 |          0  (omitted)
 _Isector_38 |   .1218102   .1155724     1.05   0.292     -.104861    .3484814
 _Isector_39 |  -.1346704   .1068555    -1.26   0.208    -.3442451    .0749043
 _Isector_40 |   .0568234    .263195     0.22   0.829    -.4593787    .5730256
 _Isector_41 |  -.0897174   .0882965    -1.02   0.310    -.2628926    .0834578
 _Isector_42 |  -.0437841   .0982216    -0.45   0.656    -.2364252    .1488571
 _Isector_43 |          0  (omitted)
 _Isector_44 |   .1641913   .2007954     0.82   0.414     -.229627    .5580097
 _Isector_45 |          0  (omitted)
 _Isector_46 |          0  (omitted)
   _Ieduc_32 |          0  (omitted)
   _Ieduc_33 |          0  (omitted)
   _Ieduc_35 |   .0177139   .0439972     0.40   0.687    -.0685773    .1040052
   _Ieduc_36 |          0  (omitted)
   _Ieduc_37 |          0  (omitted)
   _Ieduc_38 |          0  (omitted)
   _Ieduc_53 |          0  (omitted)
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |   .9366359   .2817391     3.32   0.001     .3840634    1.489208
   _Ieduc_56 |          0  (omitted)
   _Ieduc_57 |          0  (omitted)
   _Ieduc_63 |          0  (omitted)
   _Ieduc_64 |          0  (omitted)
   _Ieduc_65 |   .9819922    .246316     3.99   0.000     .4988946     1.46509
   _Ieduc_66 |          0  (omitted)
   _Ieduc_72 |          0  (omitted)
   _Ieduc_73 |          0  (omitted)
   _Ieduc_74 |   1.042913   .2441818     4.27   0.000     .5640014    1.521825
   _Ieduc_75 |   .9671149   .1966438     4.92   0.000      .581439    1.352791
   _Ieduc_76 |          0  (omitted)
   _Ieduc_77 |          0  (omitted)
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |   1.016386   .2439569     4.17   0.000     .5379152    1.494856
   _Ieduc_85 |   1.125885   .2257983     4.99   0.000     .6830289    1.568742
   _Ieduc_86 |          0  (omitted)
   _Ieduc_87 |          0  (omitted)
   _Ieduc_99 |    .388036   .1028005     3.77   0.000     .1864142    .5896578
   _Inuts2_2 |  -.0534715   .0805571    -0.66   0.507    -.2114675    .1045246
   _Inuts2_3 |   .0472564   .0881138     0.54   0.592    -.1255604    .2200732
   _Inuts2_4 |  -.0057538   .0836981    -0.07   0.945    -.1699101    .1584026
   _Inuts2_5 |   .0214535   .0428489     0.50   0.617    -.0625857    .1054927
   _Inuts2_6 |          0  (omitted)
   pats_indi |  -.1244772    .036413    -3.42   0.001    -.1958938   -.0530606
    lagpatsi |   -.094897   .0504737    -1.88   0.060    -.1938905    .0040966
    lagpat2i |  -.0981672    .070696    -1.39   0.165    -.2368227    .0404884
    lagpat3i |   .1027644   .0913453     1.13   0.261    -.0763904    .2819193
    lagpat4i |   .0469823   .0782791     0.60   0.548    -.1065459    .2005105
    lagpat5i |   .1811867   .0674511     2.69   0.007     .0488953    .3134781
    lagpat6i |     .06552   .0432501     1.51   0.130     -.019306    .1503461
      patsff |   .0145005    .014563     1.00   0.320    -.0140618    .0430627
      lpatff |   .0063511   .0200605     0.32   0.752    -.0329934    .0456956
      lpatf2 |   .0026967   .0176646     0.15   0.879    -.0319487    .0373422
      lpatf3 |   .0261905    .019434     1.35   0.178    -.0119253    .0643063
      lpatf4 |   .0316622   .0210286     1.51   0.132     -.009581    .0729053
      lpatf5 |   .0521346   .0190216     2.74   0.006     .0148277    .0894415
      lpatf6 |   .0184122   .0142377     1.29   0.196    -.0095121    .0463365
       _cons |   3.296919   1.014644     3.25   0.001     1.306906    5.286931
-------------+----------------------------------------------------------------
     sigma_u |  .79239512
     sigma_e |  .33432872
         rho |  .84888351   (fraction of variance due to u_i)
------------------------------------------------------------------------------

. xi: xtreg logwage5 $expl_0 cits_indi lagcitsi lagcit2i lagcit3i lagcit4i lagcit5i lagcit6i citsf
> f lcitff lcitf2 lcitf3 lcitf4 lcitf5 lcitf6, fe robust  ;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: female omitted because of collinearity
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Ivuosi_1996 omitted because of collinearity
note: _Ivuosi_1997 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_2 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_7 omitted because of collinearity
note: _Isector_8 omitted because of collinearity
note: _Isector_11 omitted because of collinearity
note: _Isector_15 omitted because of collinearity
note: _Isector_23 omitted because of collinearity
note: _Isector_28 omitted because of collinearity
note: _Isector_32 omitted because of collinearity
note: _Isector_33 omitted because of collinearity
note: _Isector_34 omitted because of collinearity
note: _Isector_36 omitted because of collinearity
note: _Isector_37 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Isector_45 omitted because of collinearity
note: _Isector_46 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_64 omitted because of collinearity
note: _Ieduc_66 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_73 omitted because of collinearity
note: _Ieduc_76 omitted because of collinearity
note: _Ieduc_77 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity
note: _Ieduc_86 omitted because of collinearity
note: _Ieduc_87 omitted because of collinearity
note: _Inuts2_6 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =      4936
Group variable: id                              Number of groups   =      1789

R-sq:  within  = 0.1072                         Obs per group: min =         1
       between = 0.0357                                        avg =       2.8
       overall = 0.0395                                        max =         3

                                                F(51,1788)         =         .
corr(u_i, Xb)  = -0.6921                        Prob > F           =         .

                                  (Std. Err. adjusted for 1789 clusters in id)
------------------------------------------------------------------------------
             |               Robust
    logwage5 |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .2083335   .0425448     4.90   0.000     .1248908    .2917763
        age2 |  -.0015756   .0004442    -3.55   0.000    -.0024467   -.0007045
      tenure |    .004185   .0022114     1.89   0.059    -.0001522    .0085223
      female |          0  (omitted)
      months |   .0073011    .003554     2.05   0.040     .0003306    .0142716
         emp |   .0054813   .0010046     5.46   0.000     .0035109    .0074517
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |          0  (omitted)
_Ivuosi_1995 |          0  (omitted)
_Ivuosi_1996 |          0  (omitted)
_Ivuosi_1997 |          0  (omitted)
_Ivuosi_1998 |  -.0360716   .0089186    -4.04   0.000    -.0535635   -.0185797
_Ivuosi_1999 |          0  (omitted)
  _Isector_2 |          0  (omitted)
  _Isector_3 |          0  (omitted)
  _Isector_4 |   .0099824    .018414     0.54   0.588    -.0261328    .0460976
  _Isector_5 |  -.2262722   .1150912    -1.97   0.049    -.4519996   -.0005449
  _Isector_6 |          0  (omitted)
  _Isector_7 |          0  (omitted)
  _Isector_8 |          0  (omitted)
  _Isector_9 |    .266867   .2619233     1.02   0.308     -.246841     .780575
 _Isector_10 |  -.3978568   .2880358    -1.38   0.167    -.9627791    .1670654
 _Isector_11 |          0  (omitted)
 _Isector_12 |  -.2339263   .1029649    -2.27   0.023    -.4358705   -.0319821
 _Isector_13 |  -.0447224    .081859    -0.55   0.585    -.2052718     .115827
 _Isector_14 |   -.081961   .1376511    -0.60   0.552    -.3519349    .1880129
 _Isector_15 |          0  (omitted)
 _Isector_16 |   .0207578   .2012415     0.10   0.918    -.3739353     .415451
 _Isector_17 |  -.0406327   .1919192    -0.21   0.832    -.4170423    .3357769
 _Isector_18 |  -.0757899   .1080055    -0.70   0.483    -.2876202    .1360404
 _Isector_19 |   -.100233   .1899059    -0.53   0.598    -.4726938    .2722278
 _Isector_20 |   .0213864   .1245199     0.17   0.864    -.2228333    .2656062
 _Isector_21 |  -.4738832   .2078584    -2.28   0.023    -.8815542   -.0662123
 _Isector_22 |  -.0479386   .1085088    -0.44   0.659     -.260756    .1648788
 _Isector_23 |          0  (omitted)
 _Isector_24 |  -.1692374   .1654979    -1.02   0.307    -.4938271    .1553522
 _Isector_25 |  -.1011914   .0939613    -1.08   0.282    -.2854769    .0830941
 _Isector_26 |  -.0585819   .1049367    -0.56   0.577    -.2643933    .1472295
 _Isector_27 |   .0254824   .1242612     0.21   0.838      -.21823    .2691947
 _Isector_28 |          0  (omitted)
 _Isector_29 |  -.1015127   .1158052    -0.88   0.381    -.3286405     .125615
 _Isector_30 |  -.2056259   .1080011    -1.90   0.057    -.4174475    .0061956
 _Isector_31 |   .0023391   .1140408     0.02   0.984    -.2213281    .2260062
 _Isector_32 |          0  (omitted)
 _Isector_33 |          0  (omitted)
 _Isector_34 |          0  (omitted)
 _Isector_35 |  -.0998763    .212614    -0.47   0.639    -.5168744    .3171219
 _Isector_36 |          0  (omitted)
 _Isector_37 |          0  (omitted)
 _Isector_38 |   .1204989   .1162456     1.04   0.300    -.1074927    .3484905
 _Isector_39 |  -.1236675   .0963593    -1.28   0.200    -.3126563    .0653212
 _Isector_40 |   .0915158   .2698992     0.34   0.735    -.4378352    .6208669
 _Isector_41 |  -.1005618   .0920691    -1.09   0.275    -.2811362    .0800126
 _Isector_42 |   -.049466   .1016571    -0.49   0.627    -.2488452    .1499133
 _Isector_43 |          0  (omitted)
 _Isector_44 |   .1604915    .207445     0.77   0.439    -.2463687    .5673518
 _Isector_45 |          0  (omitted)
 _Isector_46 |          0  (omitted)
   _Ieduc_32 |          0  (omitted)
   _Ieduc_33 |          0  (omitted)
   _Ieduc_35 |   .0172315   .0564506     0.31   0.760    -.0934846    .1279476
   _Ieduc_36 |          0  (omitted)
   _Ieduc_37 |          0  (omitted)
   _Ieduc_38 |          0  (omitted)
   _Ieduc_53 |          0  (omitted)
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |    .848905   .2761175     3.07   0.002      .307358    1.390452
   _Ieduc_56 |          0  (omitted)
   _Ieduc_57 |          0  (omitted)
   _Ieduc_63 |          0  (omitted)
   _Ieduc_64 |          0  (omitted)
   _Ieduc_65 |   .9232629   .2477062     3.73   0.000     .4374389    1.409087
   _Ieduc_66 |          0  (omitted)
   _Ieduc_72 |          0  (omitted)
   _Ieduc_73 |          0  (omitted)
   _Ieduc_74 |    1.00089   .2447002     4.09   0.000     .5209621    1.480819
   _Ieduc_75 |   .9014449   .1990465     4.53   0.000     .5110567    1.291833
   _Ieduc_76 |          0  (omitted)
   _Ieduc_77 |          0  (omitted)
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |   .9628571   .2457717     3.92   0.000     .4808271    1.444887
   _Ieduc_85 |   1.090882   .2355578     4.63   0.000     .6288848     1.55288
   _Ieduc_86 |          0  (omitted)
   _Ieduc_87 |          0  (omitted)
   _Ieduc_99 |   .3683829   .1127587     3.27   0.001     .1472303    .5895356
   _Inuts2_2 |  -.0399883   .0791927    -0.50   0.614    -.1953082    .1153317
   _Inuts2_3 |   .0495121   .0896033     0.55   0.581    -.1262261    .2252502
   _Inuts2_4 |   .0226521   .0810668     0.28   0.780    -.1363435    .1816477
   _Inuts2_5 |   .0647566   .0604775     1.07   0.284    -.0538573    .1833705
   _Inuts2_6 |          0  (omitted)
   cits_indi |  -.0089756   .0034838    -2.58   0.010    -.0158084   -.0021428
    lagcitsi |  -.0111061   .0070938    -1.57   0.118    -.0250191     .002807
    lagcit2i |   -.019014   .0084279    -2.26   0.024    -.0355436   -.0024843
    lagcit3i |   .0142392   .0078219     1.82   0.069    -.0011018    .0295801
    lagcit4i |  -.0023132    .006279    -0.37   0.713    -.0146282    .0100018
    lagcit5i |   .0040485    .001262     3.21   0.001     .0015733    .0065236
    lagcit6i |   .0032363   .0013312     2.43   0.015     .0006254    .0058473
      citsff |   .0004209   .0014415     0.29   0.770    -.0024062     .003248
      lcitff |   .0002665   .0013884     0.19   0.848    -.0024566    .0029896
      lcitf2 |   .0031258   .0014725     2.12   0.034     .0002378    .0060138
      lcitf3 |   .0048762   .0018365     2.66   0.008     .0012743     .008478
      lcitf4 |   .0045063    .001847     2.44   0.015     .0008839    .0081288
      lcitf5 |   .0031896   .0017934     1.78   0.075    -.0003278    .0067071
      lcitf6 |   .0030112   .0021653     1.39   0.165    -.0012356    .0072579
       _cons |   3.798817   1.035445     3.67   0.000     1.768007    5.829626
-------------+----------------------------------------------------------------
     sigma_u |  .76828977
     sigma_e |  .33289001
         rho |  .84193676   (fraction of variance due to u_i)
------------------------------------------------------------------------------

. *-----------------------------------------------------;
. *patent and citations as shares of inventor;
. *-----------------------------------------------------;
. /* TABLE 9 */
> xi: xtreg logwage $expl_0 pats_share lagpsh lagpsh2 lagpsh3 lagpsh4 lagpsh5 lagpsh6, fe robust  
> ;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: female omitted because of collinearity
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Ivuosi_1996 omitted because of collinearity
note: _Ivuosi_1997 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_2 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_7 omitted because of collinearity
note: _Isector_8 omitted because of collinearity
note: _Isector_11 omitted because of collinearity
note: _Isector_15 omitted because of collinearity
note: _Isector_23 omitted because of collinearity
note: _Isector_28 omitted because of collinearity
note: _Isector_32 omitted because of collinearity
note: _Isector_33 omitted because of collinearity
note: _Isector_34 omitted because of collinearity
note: _Isector_36 omitted because of collinearity
note: _Isector_37 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Isector_45 omitted because of collinearity
note: _Isector_46 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_64 omitted because of collinearity
note: _Ieduc_66 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_73 omitted because of collinearity
note: _Ieduc_76 omitted because of collinearity
note: _Ieduc_77 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity
note: _Ieduc_86 omitted because of collinearity
note: _Ieduc_87 omitted because of collinearity
note: _Inuts2_6 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =      4938
Group variable: id                              Number of groups   =      1789

R-sq:  within  = 0.0733                         Obs per group: min =         1
       between = 0.0534                                        avg =       2.8
       overall = 0.0487                                        max =         3

                                                F(44,1788)         =         .
corr(u_i, Xb)  = -0.6799                        Prob > F           =         .

                                  (Std. Err. adjusted for 1789 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .2120566   .0483933     4.38   0.000     .1171432    .3069701
        age2 |  -.0017494   .0004973    -3.52   0.000    -.0027247   -.0007741
      tenure |   .0078757   .0021954     3.59   0.000     .0035699    .0121814
      female |          0  (omitted)
      months |   .0060209   .0038047     1.58   0.114    -.0014412    .0134831
         emp |   .0042769   .0009896     4.32   0.000      .002336    .0062178
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |          0  (omitted)
_Ivuosi_1995 |          0  (omitted)
_Ivuosi_1996 |          0  (omitted)
_Ivuosi_1997 |          0  (omitted)
_Ivuosi_1998 |   .0275317   .0101221     2.72   0.007     .0076794    .0473841
_Ivuosi_1999 |          0  (omitted)
  _Isector_2 |          0  (omitted)
  _Isector_3 |          0  (omitted)
  _Isector_4 |   .0278247   .0135024     2.06   0.039     .0013426    .0543068
  _Isector_5 |  -.3648842   .1934279    -1.89   0.059    -.7442527    .0144844
  _Isector_6 |          0  (omitted)
  _Isector_7 |          0  (omitted)
  _Isector_8 |          0  (omitted)
  _Isector_9 |   .0292285   .2812651     0.10   0.917    -.5224143    .5808714
 _Isector_10 |  -.4936898   .2401895    -2.06   0.040    -.9647716   -.0226081
 _Isector_11 |          0  (omitted)
 _Isector_12 |   -.235597   .1287403    -1.83   0.067    -.4880942    .0169002
 _Isector_13 |  -.0401615   .1087196    -0.37   0.712    -.2533924    .1730694
 _Isector_14 |  -.1742758   .1540749    -1.13   0.258    -.4764616    .1279099
 _Isector_15 |          0  (omitted)
 _Isector_16 |  -.3242156   .1499754    -2.16   0.031    -.6183612     -.03007
 _Isector_17 |  -.0964626   .2197623    -0.44   0.661    -.5274806    .3345554
 _Isector_18 |  -.1673295    .127318    -1.31   0.189    -.4170372    .0823783
 _Isector_19 |  -.1667549   .2080127    -0.80   0.423    -.5747284    .2412186
 _Isector_20 |  -.0862974   .1473126    -0.59   0.558    -.3752204    .2026255
 _Isector_21 |  -.4324223   .2375803    -1.82   0.069    -.8983865    .0335419
 _Isector_22 |    -.09674   .1234818    -0.78   0.433    -.3389238    .1454438
 _Isector_23 |          0  (omitted)
 _Isector_24 |  -.3010262   .1658868    -1.81   0.070    -.6263786    .0243263
 _Isector_25 |  -.0458338    .116175    -0.39   0.693    -.2736868    .1820192
 _Isector_26 |  -.0812607   .1269651    -0.64   0.522    -.3302762    .1677548
 _Isector_27 |  -.0884376   .1699651    -0.52   0.603    -.4217888    .2449136
 _Isector_28 |          0  (omitted)
 _Isector_29 |  -.1878725   .1282361    -1.47   0.143    -.4393809     .063636
 _Isector_30 |  -.0270983   .1325819    -0.20   0.838      -.28713    .2329335
 _Isector_31 |    .360684   .1304797     2.76   0.006     .1047752    .6165928
 _Isector_32 |          0  (omitted)
 _Isector_33 |          0  (omitted)
 _Isector_34 |          0  (omitted)
 _Isector_35 |  -.1949075   .2348851    -0.83   0.407    -.6555856    .2657706
 _Isector_36 |          0  (omitted)
 _Isector_37 |          0  (omitted)
 _Isector_38 |   .0641545    .161467     0.40   0.691    -.2525294    .3808384
 _Isector_39 |  -.0937939    .141104    -0.66   0.506      -.37054    .1829522
 _Isector_40 |  -.2076375   .2002738    -1.04   0.300    -.6004328    .1851578
 _Isector_41 |  -.0847595   .1177006    -0.72   0.472    -.3156048    .1460857
 _Isector_42 |   -.112577   .1272586    -0.88   0.376    -.3621682    .1370142
 _Isector_43 |          0  (omitted)
 _Isector_44 |   2.037335   .8744243     2.33   0.020     .3223338    3.752336
 _Isector_45 |          0  (omitted)
 _Isector_46 |          0  (omitted)
   _Ieduc_32 |          0  (omitted)
   _Ieduc_33 |          0  (omitted)
   _Ieduc_35 |   .0331606   .0545851     0.61   0.544    -.0738966    .1402179
   _Ieduc_36 |          0  (omitted)
   _Ieduc_37 |          0  (omitted)
   _Ieduc_38 |          0  (omitted)
   _Ieduc_53 |          0  (omitted)
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |   .9190919   .3376993     2.72   0.007     .2567651    1.581419
   _Ieduc_56 |          0  (omitted)
   _Ieduc_57 |          0  (omitted)
   _Ieduc_63 |          0  (omitted)
   _Ieduc_64 |          0  (omitted)
   _Ieduc_65 |   1.021256   .2888499     3.54   0.000     .4547369    1.587775
   _Ieduc_66 |          0  (omitted)
   _Ieduc_72 |          0  (omitted)
   _Ieduc_73 |          0  (omitted)
   _Ieduc_74 |   1.073085   .2851897     3.76   0.000      .513745    1.632425
   _Ieduc_75 |   1.089665   .2302346     4.73   0.000     .6381079    1.541222
   _Ieduc_76 |          0  (omitted)
   _Ieduc_77 |          0  (omitted)
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |   1.081035   .2852499     3.79   0.000     .5215771    1.640494
   _Ieduc_85 |   1.167893   .2525645     4.62   0.000     .6725405    1.663246
   _Ieduc_86 |          0  (omitted)
   _Ieduc_87 |          0  (omitted)
   _Ieduc_99 |   .2977074   .1209769     2.46   0.014     .0604365    .5349783
   _Inuts2_2 |  -.2710898   .1904068    -1.42   0.155    -.6445332    .1023535
   _Inuts2_3 |  -.0436846   .1299298    -0.34   0.737    -.2985149    .2111457
   _Inuts2_4 |  -.1497989   .1542054    -0.97   0.331    -.4522407    .1526429
   _Inuts2_5 |  -.1316773   .1078589    -1.22   0.222    -.3432201    .0798656
   _Inuts2_6 |          0  (omitted)
  pats_share |   .0052373   .0280598     0.19   0.852     -.049796    .0602707
      lagpsh |  -.0392721    .037812    -1.04   0.299    -.1134324    .0348882
     lagpsh2 |  -.0627492   .0502276    -1.25   0.212    -.1612601    .0357618
     lagpsh3 |   .0134605   .0380582     0.35   0.724    -.0611827    .0881038
     lagpsh4 |    .060611   .0341654     1.77   0.076    -.0063973    .1276192
     lagpsh5 |   .0672913   .0466647     1.44   0.149    -.0242317    .1588143
     lagpsh6 |   .0486481   .0305039     1.59   0.111    -.0111789    .1084751
       _cons |   3.986377   1.206199     3.30   0.001     1.620669    6.352085
-------------+----------------------------------------------------------------
     sigma_u |  .70194019
     sigma_e |  .37973465
         rho |  .77359989   (fraction of variance due to u_i)
------------------------------------------------------------------------------

. xi: xtreg logwage $expl_0 cits_share lagcsh lagcsh2 lagcsh3 lagcsh4 lagcsh5 lagcsh6, fe robust  
> ;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: female omitted because of collinearity
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Ivuosi_1996 omitted because of collinearity
note: _Ivuosi_1997 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_2 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_7 omitted because of collinearity
note: _Isector_8 omitted because of collinearity
note: _Isector_11 omitted because of collinearity
note: _Isector_15 omitted because of collinearity
note: _Isector_23 omitted because of collinearity
note: _Isector_28 omitted because of collinearity
note: _Isector_32 omitted because of collinearity
note: _Isector_33 omitted because of collinearity
note: _Isector_34 omitted because of collinearity
note: _Isector_36 omitted because of collinearity
note: _Isector_37 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Isector_45 omitted because of collinearity
note: _Isector_46 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_64 omitted because of collinearity
note: _Ieduc_66 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_73 omitted because of collinearity
note: _Ieduc_76 omitted because of collinearity
note: _Ieduc_77 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity
note: _Ieduc_86 omitted because of collinearity
note: _Ieduc_87 omitted because of collinearity
note: _Inuts2_6 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =      4938
Group variable: id                              Number of groups   =      1789

R-sq:  within  = 0.0774                         Obs per group: min =         1
       between = 0.0608                                        avg =       2.8
       overall = 0.0569                                        max =         3

                                                F(44,1788)         =         .
corr(u_i, Xb)  = -0.6410                        Prob > F           =         .

                                  (Std. Err. adjusted for 1789 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .1857596   .0483598     3.84   0.000     .0909119    .2806073
        age2 |  -.0014998   .0004958    -3.03   0.003    -.0024721   -.0005274
      tenure |   .0076839    .002125     3.62   0.000     .0035163    .0118516
      female |          0  (omitted)
      months |   .0046816   .0043604     1.07   0.283    -.0038704    .0132335
         emp |   .0042008   .0009872     4.26   0.000     .0022646     .006137
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |          0  (omitted)
_Ivuosi_1995 |          0  (omitted)
_Ivuosi_1996 |          0  (omitted)
_Ivuosi_1997 |          0  (omitted)
_Ivuosi_1998 |   .0271812   .0102783     2.64   0.008     .0070224      .04734
_Ivuosi_1999 |          0  (omitted)
  _Isector_2 |          0  (omitted)
  _Isector_3 |          0  (omitted)
  _Isector_4 |   .0307738   .0131032     2.35   0.019     .0050747    .0564729
  _Isector_5 |   -.325841   .1939654    -1.68   0.093    -.7062638    .0545818
  _Isector_6 |          0  (omitted)
  _Isector_7 |          0  (omitted)
  _Isector_8 |          0  (omitted)
  _Isector_9 |   .0784326   .2671836     0.29   0.769    -.4455924    .6024577
 _Isector_10 |  -.4418105   .2284905    -1.93   0.053     -.889947     .006326
 _Isector_11 |          0  (omitted)
 _Isector_12 |   -.207851   .1255386    -1.66   0.098    -.4540688    .0383669
 _Isector_13 |  -.0076036   .1055108    -0.07   0.943    -.2145411    .1993339
 _Isector_14 |  -.1426067   .1421037    -1.00   0.316    -.4213135    .1361002
 _Isector_15 |          0  (omitted)
 _Isector_16 |  -.2927621   .1443672    -2.03   0.043    -.5759083   -.0096159
 _Isector_17 |  -.0730034    .216791    -0.34   0.736    -.4981938     .352187
 _Isector_18 |  -.1226171   .1241703    -0.99   0.324    -.3661513     .120917
 _Isector_19 |  -.1383527   .1992666    -0.69   0.488    -.5291726    .2524673
 _Isector_20 |  -.0502842   .1414814    -0.36   0.722    -.3277705    .2272021
 _Isector_21 |  -.3898161   .2331065    -1.67   0.095     -.847006    .0673738
 _Isector_22 |  -.0616362   .1215919    -0.51   0.612    -.3001134    .1768411
 _Isector_23 |          0  (omitted)
 _Isector_24 |  -.2642382    .159241    -1.66   0.097    -.5765562    .0480799
 _Isector_25 |  -.0272221   .1104797    -0.25   0.805    -.2439051    .1894608
 _Isector_26 |   -.057191   .1268961    -0.45   0.652    -.3060712    .1916892
 _Isector_27 |  -.0069538   .1650339    -0.04   0.966    -.3306333    .3167257
 _Isector_28 |          0  (omitted)
 _Isector_29 |   -.155664   .1252758    -1.24   0.214    -.4013664    .0900383
 _Isector_30 |    .007124   .1300876     0.05   0.956    -.2480156    .2622637
 _Isector_31 |   .3700234   .1321719     2.80   0.005     .1107957    .6292511
 _Isector_32 |          0  (omitted)
 _Isector_33 |          0  (omitted)
 _Isector_34 |          0  (omitted)
 _Isector_35 |   -.139212   .2274785    -0.61   0.541    -.5853637    .3069397
 _Isector_36 |          0  (omitted)
 _Isector_37 |          0  (omitted)
 _Isector_38 |    .096843   .1578764     0.61   0.540    -.2127988    .4064847
 _Isector_39 |  -.0529899   .1258782    -0.42   0.674    -.2998738    .1938941
 _Isector_40 |  -.1418933   .2036824    -0.70   0.486    -.5413739    .2575873
 _Isector_41 |  -.0555765   .1141662    -0.49   0.626    -.2794897    .1683367
 _Isector_42 |  -.0769309    .124223    -0.62   0.536    -.3205683    .1667065
 _Isector_43 |          0  (omitted)
 _Isector_44 |   2.020438   .8542637     2.37   0.018      .344978    3.695898
 _Isector_45 |          0  (omitted)
 _Isector_46 |          0  (omitted)
   _Ieduc_32 |          0  (omitted)
   _Ieduc_33 |          0  (omitted)
   _Ieduc_35 |   .0252933   .0380586     0.66   0.506    -.0493508    .0999374
   _Ieduc_36 |          0  (omitted)
   _Ieduc_37 |          0  (omitted)
   _Ieduc_38 |          0  (omitted)
   _Ieduc_53 |          0  (omitted)
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |    .817538   .3279302     2.49   0.013     .1743714    1.460705
   _Ieduc_56 |          0  (omitted)
   _Ieduc_57 |          0  (omitted)
   _Ieduc_63 |          0  (omitted)
   _Ieduc_64 |          0  (omitted)
   _Ieduc_65 |   .9650022   .2907028     3.32   0.001     .3948491    1.535155
   _Ieduc_66 |          0  (omitted)
   _Ieduc_72 |          0  (omitted)
   _Ieduc_73 |          0  (omitted)
   _Ieduc_74 |   1.021243   .2867924     3.56   0.000     .4587593    1.583726
   _Ieduc_75 |   1.015175   .2333675     4.35   0.000     .5574737    1.472877
   _Ieduc_76 |          0  (omitted)
   _Ieduc_77 |          0  (omitted)
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |   1.009091   .2887557     3.49   0.000     .4427565    1.575425
   _Ieduc_85 |   1.051043   .2636802     3.99   0.000      .533889    1.568197
   _Ieduc_86 |          0  (omitted)
   _Ieduc_87 |          0  (omitted)
   _Ieduc_99 |   .2826863   .1122823     2.52   0.012     .0624678    .5029047
   _Inuts2_2 |   -.282119   .1867255    -1.51   0.131    -.6483421    .0841041
   _Inuts2_3 |  -.0448013   .1363561    -0.33   0.743    -.3122355    .2226329
   _Inuts2_4 |  -.1355342   .1521752    -0.89   0.373    -.4339943    .1629258
   _Inuts2_5 |  -.0901778   .1059725    -0.85   0.395    -.2980208    .1176652
   _Inuts2_6 |          0  (omitted)
  cits_share |   .0007718   .0022544     0.34   0.732    -.0036498    .0051933
      lagcsh |  -.0009292   .0027888    -0.33   0.739    -.0063989    .0045404
     lagcsh2 |   .0017325   .0028448     0.61   0.543     -.003847     .007312
     lagcsh3 |   .0061441   .0033317     1.84   0.065    -.0003903    .0126785
     lagcsh4 |   .0084542    .003269     2.59   0.010     .0020428    .0148656
     lagcsh5 |   .0072213   .0031532     2.29   0.022     .0010369    .0134056
     lagcsh6 |   .0063357    .004222     1.50   0.134     -.001945    .0146163
       _cons |   4.667457   1.212141     3.85   0.000     2.290095    7.044819
-------------+----------------------------------------------------------------
     sigma_u |   .6689191
     sigma_e |  .37888419
         rho |   .7571036   (fraction of variance due to u_i)
------------------------------------------------------------------------------

. *-----------------------------------------------------;
. *changes of employer;
. *-----------------------------------------------------;
. xi: xtreg logwage $expl_0 i.old|pats i.lagold|lagpats i.lagold2|lagpat2
> i.lagold3|lagpat3 i.lagold4|lagpat4 i.lagold5|lagpat5 i.lagold6|lagpat6 
> new lagnew lagnew2 lagnew3 lagnew4 lagnew5 lagnew6, fe robust;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
i.old             _Iold_0-1           (naturally coded; _Iold_0 omitted)
i.old|pats        _IoldXpats_#        (coded as above)
i.lagold          _Ilagold_0-1        (naturally coded; _Ilagold_0 omitted)
i.lagold|lagp~s   _IlagXlagpa_#       (coded as above)
i.lagold2         _Ilagold2_0-1       (naturally coded; _Ilagold2_0 omitted)
i.lago~2|l~pat2   _IlagXlagpaa#       (coded as above)
i.lagold3         _Ilagold3_0-1       (naturally coded; _Ilagold3_0 omitted)
i.lago~3|l~pat3   _IlagXlagpab#       (coded as above)
i.lagold4         _Ilagold4_0-1       (naturally coded; _Ilagold4_0 omitted)
i.lago~4|l~pat4   _IlagXlagpac#       (coded as above)
i.lagold5         _Ilagold5_0-1       (naturally coded; _Ilagold5_0 omitted)
i.lago~5|l~pat5   _IlagXlagpad#       (coded as above)
i.lagold6         _Ilagold6_0-1       (naturally coded; _Ilagold6_0 omitted)
i.lago~6|l~pat6   _IlagXlagpae#       (coded as above)
note: female omitted because of collinearity
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Ivuosi_1996 omitted because of collinearity
note: _Ivuosi_1997 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_2 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_7 omitted because of collinearity
note: _Isector_8 omitted because of collinearity
note: _Isector_11 omitted because of collinearity
note: _Isector_15 omitted because of collinearity
note: _Isector_23 omitted because of collinearity
note: _Isector_28 omitted because of collinearity
note: _Isector_32 omitted because of collinearity
note: _Isector_33 omitted because of collinearity
note: _Isector_34 omitted because of collinearity
note: _Isector_36 omitted because of collinearity
note: _Isector_37 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Isector_45 omitted because of collinearity
note: _Isector_46 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_64 omitted because of collinearity
note: _Ieduc_66 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_73 omitted because of collinearity
note: _Ieduc_76 omitted because of collinearity
note: _Ieduc_77 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity
note: _Ieduc_86 omitted because of collinearity
note: _Ieduc_87 omitted because of collinearity
note: _Inuts2_6 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =      4938
Group variable: id                              Number of groups   =      1789

R-sq:  within  = 0.0779                         Obs per group: min =         1
       between = 0.0671                                        avg =       2.8
       overall = 0.0614                                        max =         3

                                                F(58,1788)         =         .
corr(u_i, Xb)  = -0.6516                        Prob > F           =         .

                                   (Std. Err. adjusted for 1789 clusters in id)
-------------------------------------------------------------------------------
              |               Robust
      logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
--------------+----------------------------------------------------------------
          age |   .2144822   .0469531     4.57   0.000     .1223934     .306571
         age2 |  -.0018004     .00048    -3.75   0.000    -.0027418   -.0008589
       tenure |   .0095309   .0023372     4.08   0.000      .004947    .0141148
       female |          0  (omitted)
       months |   .0060022   .0038866     1.54   0.123    -.0016205    .0136249
          emp |   .0042116   .0009958     4.23   0.000     .0022586    .0061646
 _Ivuosi_1992 |          0  (omitted)
 _Ivuosi_1993 |          0  (omitted)
 _Ivuosi_1994 |          0  (omitted)
 _Ivuosi_1995 |          0  (omitted)
 _Ivuosi_1996 |          0  (omitted)
 _Ivuosi_1997 |          0  (omitted)
 _Ivuosi_1998 |   .0267304   .0101043     2.65   0.008     .0069129    .0465479
 _Ivuosi_1999 |          0  (omitted)
   _Isector_2 |          0  (omitted)
   _Isector_3 |          0  (omitted)
   _Isector_4 |   .0395659   .0190889     2.07   0.038      .002127    .0770048
   _Isector_5 |  -.2757878   .1970448    -1.40   0.162    -.6622502    .1106746
   _Isector_6 |          0  (omitted)
   _Isector_7 |          0  (omitted)
   _Isector_8 |          0  (omitted)
   _Isector_9 |   .0938236   .2881058     0.33   0.745    -.4712358     .658883
  _Isector_10 |  -.3676761   .2459201    -1.50   0.135    -.8499971    .1146449
  _Isector_11 |          0  (omitted)
  _Isector_12 |  -.1220129   .1501483    -0.81   0.417    -.4164974    .1724716
  _Isector_13 |   .0727002   .1331098     0.55   0.585    -.1883668    .3337673
  _Isector_14 |  -.0591529   .1663095    -0.36   0.722    -.3853343    .2670285
  _Isector_15 |          0  (omitted)
  _Isector_16 |  -.2126856   .1670773    -1.27   0.203    -.5403729    .1150018
  _Isector_17 |   .0003412   .2342932     0.00   0.999    -.4591761    .4598585
  _Isector_18 |  -.0508141   .1473967    -0.34   0.730     -.339902    .2382738
  _Isector_19 |  -.0488534   .2188654    -0.22   0.823    -.4781122    .3804054
  _Isector_20 |   .0390852   .1680376     0.23   0.816    -.2904855    .3686558
  _Isector_21 |  -.3122149   .2427019    -1.29   0.198    -.7882241    .1637943
  _Isector_22 |   .0074865   .1489489     0.05   0.960    -.2846457    .2996188
  _Isector_23 |          0  (omitted)
  _Isector_24 |  -.1791409    .165123    -1.08   0.278    -.5029952    .1447134
  _Isector_25 |   .0743834   .1454106     0.51   0.609    -.2108092     .359576
  _Isector_26 |   .0288025   .1499558     0.19   0.848    -.2653045    .3229095
  _Isector_27 |   .0956138   .1929349     0.50   0.620    -.2827878    .4740155
  _Isector_28 |          0  (omitted)
  _Isector_29 |  -.0865554   .1473755    -0.59   0.557    -.3756018     .202491
  _Isector_30 |   .0771674   .1563304     0.49   0.622    -.2294422     .383777
  _Isector_31 |   .4213138   .1567744     2.69   0.007     .1138335    .7287941
  _Isector_32 |          0  (omitted)
  _Isector_33 |          0  (omitted)
  _Isector_34 |          0  (omitted)
  _Isector_35 |  -.0665892   .2465619    -0.27   0.787    -.5501691    .4169907
  _Isector_36 |          0  (omitted)
  _Isector_37 |          0  (omitted)
  _Isector_38 |    .173664   .1739399     1.00   0.318    -.1674828    .5148108
  _Isector_39 |   .0585057    .159598     0.37   0.714    -.2545125    .3715239
  _Isector_40 |  -.1119549   .2258991    -0.50   0.620     -.555009    .3310991
  _Isector_41 |   .0361437   .1421891     0.25   0.799    -.2427306     .315018
  _Isector_42 |    .000249   .1504147     0.00   0.999     -.294758     .295256
  _Isector_43 |          0  (omitted)
  _Isector_44 |   2.187705   .9184742     2.38   0.017      .386309      3.9891
  _Isector_45 |          0  (omitted)
  _Isector_46 |          0  (omitted)
    _Ieduc_32 |          0  (omitted)
    _Ieduc_33 |          0  (omitted)
    _Ieduc_35 |   .0092084   .0600809     0.15   0.878    -.1086277    .1270445
    _Ieduc_36 |          0  (omitted)
    _Ieduc_37 |          0  (omitted)
    _Ieduc_38 |          0  (omitted)
    _Ieduc_53 |          0  (omitted)
    _Ieduc_54 |          0  (omitted)
    _Ieduc_55 |   .7695461   .3630121     2.12   0.034     .0575736    1.481519
    _Ieduc_56 |          0  (omitted)
    _Ieduc_57 |          0  (omitted)
    _Ieduc_63 |          0  (omitted)
    _Ieduc_64 |          0  (omitted)
    _Ieduc_65 |    .877133    .316047     2.78   0.006     .2572727    1.496993
    _Ieduc_66 |          0  (omitted)
    _Ieduc_72 |          0  (omitted)
    _Ieduc_73 |          0  (omitted)
    _Ieduc_74 |   .9139667   .3132223     2.92   0.004     .2996465    1.528287
    _Ieduc_75 |   1.080291   .2305328     4.69   0.000     .6281488    1.532433
    _Ieduc_76 |          0  (omitted)
    _Ieduc_77 |          0  (omitted)
    _Ieduc_83 |          0  (omitted)
    _Ieduc_84 |   .9219567    .313145     2.94   0.003     .3077881    1.536125
    _Ieduc_85 |   1.154271   .2606206     4.43   0.000     .6431175    1.665424
    _Ieduc_86 |          0  (omitted)
    _Ieduc_87 |          0  (omitted)
    _Ieduc_99 |   .2553385   .1363998     1.87   0.061    -.0121814    .5228583
    _Inuts2_2 |  -.2668943    .194468    -1.37   0.170    -.6483028    .1145141
    _Inuts2_3 |  -.0214435   .1334152    -0.16   0.872    -.2831097    .2402227
    _Inuts2_4 |  -.1408842    .160883    -0.88   0.381    -.4564227    .1746542
    _Inuts2_5 |   -.109784   .1133069    -0.97   0.333    -.3320118    .1124438
    _Inuts2_6 |          0  (omitted)
         pats |   .0245697   .0146227     1.68   0.093    -.0041096     .053249
 _IoldXpats_1 |   .0012567     .04063     0.03   0.975    -.0784306    .0809439
      lagpats |  -.0032624   .0237172    -0.14   0.891    -.0497788     .043254
_IlagXlagpa_1 |  -.0105852    .049299    -0.21   0.830    -.1072749    .0861045
      lagpat2 |  -.0229894   .0241101    -0.95   0.340    -.0702763    .0242976
_IlagXlagpaa1 |    .019912   .0476223     0.42   0.676    -.0734892    .1133132
      lagpat3 |   .0145097   .0217341     0.67   0.504    -.0281171    .0571365
_IlagXlagpab1 |  -.0006948   .0513447    -0.01   0.989    -.1013967    .1000071
      lagpat4 |   .0477181   .0218378     2.19   0.029     .0048877    .0905484
_IlagXlagpac1 |  -.0509595   .0440891    -1.16   0.248     -.137431     .035512
      lagpat5 |   .0563007   .0222854     2.53   0.012     .0125925    .1000088
_IlagXlagpad1 |  -.0252319   .0413887    -0.61   0.542    -.1064071    .0559434
      lagpat6 |   .0556917   .0194073     2.87   0.004     .0176283     .093755
_IlagXlagpae1 |  -.0684829     .04035    -1.70   0.090     -.147621    .0106552
          new |    .083737   .0525961     1.59   0.112    -.0194192    .1868932
       lagnew |   .0765978   .0696184     1.10   0.271    -.0599443    .2131398
      lagnew2 |   .1109892   .0723287     1.53   0.125    -.0308684    .2528469
      lagnew3 |   .1406886   .0777492     1.81   0.071    -.0118003    .2931775
      lagnew4 |   .0794792    .098009     0.81   0.418    -.1127451    .2717034
      lagnew5 |   .0524187   .0717166     0.73   0.465    -.0882385    .1930758
      lagnew6 |   .0607553   .0633239     0.96   0.337    -.0634414     .184952
        _cons |   3.870096   1.176811     3.29   0.001     1.562028    6.178165
--------------+----------------------------------------------------------------
      sigma_u |  .67314354
      sigma_e |  .37964043
          rho |  .75868216   (fraction of variance due to u_i)
-------------------------------------------------------------------------------

. xi: xtreg logwage $expl_0 i.old|cits i.lagold|lagcits i.lagold2|lagcit2
> i.lagold3|lagcit3 i.lagold4|lagcit4 i.lagold5|lagcit5 i.lagold6|lagcit6 
> new lagnew lagnew2 lagnew3 lagnew4 lagnew5 lagnew6, fe robust;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
i.old             _Iold_0-1           (naturally coded; _Iold_0 omitted)
i.old|cits        _IoldXcits_#        (coded as above)
i.lagold          _Ilagold_0-1        (naturally coded; _Ilagold_0 omitted)
i.lagold|lagc~s   _IlagXlagci_#       (coded as above)
i.lagold2         _Ilagold2_0-1       (naturally coded; _Ilagold2_0 omitted)
i.lago~2|l~cit2   _IlagXlagcia#       (coded as above)
i.lagold3         _Ilagold3_0-1       (naturally coded; _Ilagold3_0 omitted)
i.lago~3|l~cit3   _IlagXlagcib#       (coded as above)
i.lagold4         _Ilagold4_0-1       (naturally coded; _Ilagold4_0 omitted)
i.lago~4|l~cit4   _IlagXlagcic#       (coded as above)
i.lagold5         _Ilagold5_0-1       (naturally coded; _Ilagold5_0 omitted)
i.lago~5|l~cit5   _IlagXlagcid#       (coded as above)
i.lagold6         _Ilagold6_0-1       (naturally coded; _Ilagold6_0 omitted)
i.lago~6|l~cit6   _IlagXlagcie#       (coded as above)
note: female omitted because of collinearity
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Ivuosi_1996 omitted because of collinearity
note: _Ivuosi_1997 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_2 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_7 omitted because of collinearity
note: _Isector_8 omitted because of collinearity
note: _Isector_11 omitted because of collinearity
note: _Isector_15 omitted because of collinearity
note: _Isector_23 omitted because of collinearity
note: _Isector_28 omitted because of collinearity
note: _Isector_32 omitted because of collinearity
note: _Isector_33 omitted because of collinearity
note: _Isector_34 omitted because of collinearity
note: _Isector_36 omitted because of collinearity
note: _Isector_37 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Isector_45 omitted because of collinearity
note: _Isector_46 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_64 omitted because of collinearity
note: _Ieduc_66 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_73 omitted because of collinearity
note: _Ieduc_76 omitted because of collinearity
note: _Ieduc_77 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity
note: _Ieduc_86 omitted because of collinearity
note: _Ieduc_87 omitted because of collinearity
note: _Inuts2_6 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =      4938
Group variable: id                              Number of groups   =      1789

R-sq:  within  = 0.0827                         Obs per group: min =         1
       between = 0.0802                                        avg =       2.8
       overall = 0.0744                                        max =         3

                                                F(58,1788)         =         .
corr(u_i, Xb)  = -0.6282                        Prob > F           =         .

                                   (Std. Err. adjusted for 1789 clusters in id)
-------------------------------------------------------------------------------
              |               Robust
      logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
--------------+----------------------------------------------------------------
          age |   .1886754   .0477969     3.95   0.000     .0949318    .2824191
         age2 |  -.0015311   .0004873    -3.14   0.002    -.0024868   -.0005753
       tenure |   .0090058   .0022596     3.99   0.000      .004574    .0134377
       female |          0  (omitted)
       months |   .0048271   .0048394     1.00   0.319    -.0046645    .0143186
          emp |   .0044365   .0010077     4.40   0.000     .0024601    .0064129
 _Ivuosi_1992 |          0  (omitted)
 _Ivuosi_1993 |          0  (omitted)
 _Ivuosi_1994 |          0  (omitted)
 _Ivuosi_1995 |          0  (omitted)
 _Ivuosi_1996 |          0  (omitted)
 _Ivuosi_1997 |          0  (omitted)
 _Ivuosi_1998 |   .0247449   .0102759     2.41   0.016     .0045909    .0448988
 _Ivuosi_1999 |          0  (omitted)
   _Isector_2 |          0  (omitted)
   _Isector_3 |          0  (omitted)
   _Isector_4 |   .0418149   .0164523     2.54   0.011      .009547    .0740827
   _Isector_5 |  -.2962999   .1994489    -1.49   0.138    -.6874775    .0948776
   _Isector_6 |          0  (omitted)
   _Isector_7 |          0  (omitted)
   _Isector_8 |          0  (omitted)
   _Isector_9 |   .0754589   .2950005     0.26   0.798     -.503123    .6540409
  _Isector_10 |    -.39959   .2405774    -1.66   0.097    -.8714324    .0722524
  _Isector_11 |          0  (omitted)
  _Isector_12 |  -.1654537   .1508633    -1.10   0.273    -.4613407    .1304333
  _Isector_13 |   .0480397   .1351787     0.36   0.722    -.2170851    .3131645
  _Isector_14 |  -.0917579   .1673742    -0.55   0.584    -.4200276    .2365118
  _Isector_15 |          0  (omitted)
  _Isector_16 |  -.2438418   .1656775    -1.47   0.141    -.5687837    .0811001
  _Isector_17 |  -.0444294   .2360951    -0.19   0.851    -.5074806    .4186219
  _Isector_18 |  -.0813749   .1485268    -0.55   0.584    -.3726792    .2099294
  _Isector_19 |  -.0695068   .2191711    -0.32   0.751    -.4993653    .3603517
  _Isector_20 |   .0246348   .1691528     0.15   0.884    -.3071231    .3563927
  _Isector_21 |  -.3464438   .2479217    -1.40   0.162    -.8326905    .1398029
  _Isector_22 |   -.003685   .1523968    -0.02   0.981    -.3025796    .2952095
  _Isector_23 |          0  (omitted)
  _Isector_24 |  -.2115125   .1680965    -1.26   0.208    -.5411987    .1181737
  _Isector_25 |   .0069215   .1468427     0.05   0.962    -.2810798    .2949229
  _Isector_26 |  -.0087062   .1525997    -0.06   0.955    -.3079988    .2905864
  _Isector_27 |   .0936295   .1919275     0.49   0.626    -.2827964    .4700554
  _Isector_28 |          0  (omitted)
  _Isector_29 |  -.1286765   .1497084    -0.86   0.390    -.4222984    .1649454
  _Isector_30 |   .0428676   .1559006     0.27   0.783    -.2628989    .3486342
  _Isector_31 |   .3538021   .1674637     2.11   0.035     .0253571    .6822472
  _Isector_32 |          0  (omitted)
  _Isector_33 |          0  (omitted)
  _Isector_34 |          0  (omitted)
  _Isector_35 |  -.1332133   .2519052    -0.53   0.597    -.6272728    .3608463
  _Isector_36 |          0  (omitted)
  _Isector_37 |          0  (omitted)
  _Isector_38 |   .1434751   .1755338     0.82   0.414    -.2007979    .4877481
  _Isector_39 |   .0266977   .1453493     0.18   0.854    -.2583747    .3117701
  _Isector_40 |  -.1486334   .2123528    -0.70   0.484    -.5651191    .2678523
  _Isector_41 |  -.0066036   .1420986    -0.05   0.963    -.2853004    .2720933
  _Isector_42 |  -.0248625   .1508128    -0.16   0.869    -.3206503    .2709253
  _Isector_43 |          0  (omitted)
  _Isector_44 |    2.06104   .8654535     2.38   0.017     .3636327    3.758446
  _Isector_45 |          0  (omitted)
  _Isector_46 |          0  (omitted)
    _Ieduc_32 |          0  (omitted)
    _Ieduc_33 |          0  (omitted)
    _Ieduc_35 |   .0079278   .0478648     0.17   0.868    -.0859491    .1018047
    _Ieduc_36 |          0  (omitted)
    _Ieduc_37 |          0  (omitted)
    _Ieduc_38 |          0  (omitted)
    _Ieduc_53 |          0  (omitted)
    _Ieduc_54 |          0  (omitted)
    _Ieduc_55 |   .7380874   .3534222     2.09   0.037     .0449235    1.431251
    _Ieduc_56 |          0  (omitted)
    _Ieduc_57 |          0  (omitted)
    _Ieduc_63 |          0  (omitted)
    _Ieduc_64 |          0  (omitted)
    _Ieduc_65 |   .8717957   .3163764     2.76   0.006     .2512892    1.492302
    _Ieduc_66 |          0  (omitted)
    _Ieduc_72 |          0  (omitted)
    _Ieduc_73 |          0  (omitted)
    _Ieduc_74 |   .9262194   .3124968     2.96   0.003      .313322    1.539117
    _Ieduc_75 |   1.079149   .2357069     4.58   0.000      .616859    1.541439
    _Ieduc_76 |          0  (omitted)
    _Ieduc_77 |          0  (omitted)
    _Ieduc_83 |          0  (omitted)
    _Ieduc_84 |    .914294   .3159161     2.89   0.004     .2946904    1.533897
    _Ieduc_85 |   1.141799    .265735     4.30   0.000     .6206151    1.662983
    _Ieduc_86 |          0  (omitted)
    _Ieduc_87 |          0  (omitted)
    _Ieduc_99 |   .2435268   .1326814     1.84   0.067    -.0167002    .5037537
    _Inuts2_2 |  -.2616151    .192164    -1.36   0.174    -.6385049    .1152746
    _Inuts2_3 |  -.0248526   .1339367    -0.19   0.853    -.2875415    .2378364
    _Inuts2_4 |  -.1111074   .1550642    -0.72   0.474    -.4152334    .1930186
    _Inuts2_5 |   -.064976   .1288309    -0.50   0.614     -.317651     .187699
    _Inuts2_6 |          0  (omitted)
         cits |   .0017656   .0010247     1.72   0.085     -.000244    .0037753
 _IoldXcits_1 |   .0001415   .0025301     0.06   0.955    -.0048207    .0051037
      lagcits |   .0003359   .0016686     0.20   0.840    -.0029367    .0036086
_IlagXlagci_1 |  -.0048856   .0034482    -1.42   0.157    -.0116484    .0018773
      lagcit2 |   .0017618   .0018645     0.94   0.345     -.001895    .0054186
_IlagXlagcia1 |  -.0040239   .0029385    -1.37   0.171    -.0097871    .0017392
      lagcit3 |   .0042798   .0020937     2.04   0.041     .0001734    .0083863
_IlagXlagcib1 |  -.0045204    .003202    -1.41   0.158    -.0108006    .0017597
      lagcit4 |    .003902   .0019457     2.01   0.045     .0000859     .007718
_IlagXlagcic1 |  -.0037624    .003569    -1.05   0.292    -.0107621    .0032374
      lagcit5 |   .0044697   .0017703     2.52   0.012     .0009976    .0079418
_IlagXlagcid1 |   .0001451   .0036093     0.04   0.968    -.0069338     .007224
      lagcit6 |   .0052987   .0027956     1.90   0.058    -.0001844    .0107818
_IlagXlagcie1 |  -.0003854   .0039873    -0.10   0.923    -.0082056    .0074348
          new |    .084601   .0474993     1.78   0.075     -.008559    .1777611
       lagnew |   .0870777   .0651968     1.34   0.182    -.0407922    .2149476
      lagnew2 |    .120117   .0679108     1.77   0.077    -.0130758    .2533098
      lagnew3 |   .1469947   .0752267     1.95   0.051    -.0005468    .2945363
      lagnew4 |   .0790637   .0961935     0.82   0.411    -.1095999    .2677272
      lagnew5 |   .0639217   .0708675     0.90   0.367    -.0750701    .2029135
      lagnew6 |    .069527   .0622439     1.12   0.264    -.0525514    .1916054
        _cons |   4.493305   1.217368     3.69   0.000     2.105691    6.880918
--------------+----------------------------------------------------------------
      sigma_u |  .65209603
      sigma_e |  .37865787
          rho |  .74783855   (fraction of variance due to u_i)
-------------------------------------------------------------------------------

. *-----------------------------------------------------;
. *capital income;
. *-----------------------------------------------------;
. xi: xtreg logwage3 $expl_7, fe robust  ;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: female omitted because of collinearity
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Ivuosi_1996 omitted because of collinearity
note: _Ivuosi_1997 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_2 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_7 omitted because of collinearity
note: _Isector_8 omitted because of collinearity
note: _Isector_11 omitted because of collinearity
note: _Isector_15 omitted because of collinearity
note: _Isector_23 omitted because of collinearity
note: _Isector_28 omitted because of collinearity
note: _Isector_32 omitted because of collinearity
note: _Isector_33 omitted because of collinearity
note: _Isector_34 omitted because of collinearity
note: _Isector_36 omitted because of collinearity
note: _Isector_37 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Isector_45 omitted because of collinearity
note: _Isector_46 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_64 omitted because of collinearity
note: _Ieduc_66 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_73 omitted because of collinearity
note: _Ieduc_76 omitted because of collinearity
note: _Ieduc_77 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity
note: _Ieduc_86 omitted because of collinearity
note: _Ieduc_87 omitted because of collinearity
note: _Inuts2_6 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =      4933
Group variable: id                              Number of groups   =      1789

R-sq:  within  = 0.0696                         Obs per group: min =         1
       between = 0.0411                                        avg =       2.8
       overall = 0.0417                                        max =         3

                                                F(44,1788)         =         .
corr(u_i, Xb)  = -0.6576                        Prob > F           =         .

                                  (Std. Err. adjusted for 1789 clusters in id)
------------------------------------------------------------------------------
             |               Robust
    logwage3 |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .1884293   .0456926     4.12   0.000     .0988128    .2780458
        age2 |  -.0014649   .0004687    -3.13   0.002    -.0023841   -.0005456
      tenure |   .0036969   .0018476     2.00   0.046     .0000732    .0073206
      female |          0  (omitted)
      months |   .0072028   .0031351     2.30   0.022     .0010539    .0133516
         emp |   .0048399   .0009892     4.89   0.000     .0028997    .0067801
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |          0  (omitted)
_Ivuosi_1995 |          0  (omitted)
_Ivuosi_1996 |          0  (omitted)
_Ivuosi_1997 |          0  (omitted)
_Ivuosi_1998 |  -.0233174   .0086787    -2.69   0.007    -.0403388    -.006296
_Ivuosi_1999 |          0  (omitted)
  _Isector_2 |          0  (omitted)
  _Isector_3 |          0  (omitted)
  _Isector_4 |   .0132625   .0193969     0.68   0.494    -.0247806    .0513055
  _Isector_5 |  -.2532406   .0979796    -2.58   0.010    -.4454071    -.061074
  _Isector_6 |          0  (omitted)
  _Isector_7 |          0  (omitted)
  _Isector_8 |          0  (omitted)
  _Isector_9 |   .0220914   .1681577     0.13   0.895    -.3077148    .3518976
 _Isector_10 |  -.3583206   .2833242    -1.26   0.206    -.9140019    .1973608
 _Isector_11 |          0  (omitted)
 _Isector_12 |  -.2334343   .0930708    -2.51   0.012    -.4159732   -.0508953
 _Isector_13 |  -.0535901   .0709839    -0.75   0.450    -.1928102      .08563
 _Isector_14 |  -.1363206   .1244819    -1.10   0.274    -.3804658    .1078247
 _Isector_15 |          0  (omitted)
 _Isector_16 |  -.2868709   .1177479    -2.44   0.015    -.5178088   -.0559329
 _Isector_17 |  -.0561153   .1822107    -0.31   0.758    -.4134837    .3012531
 _Isector_18 |  -.1053933   .0909577    -1.16   0.247    -.2837878    .0730012
 _Isector_19 |  -.1156633   .1952539    -0.59   0.554     -.498613    .2672865
 _Isector_20 |  -.0474127   .1171815    -0.40   0.686    -.2772399    .1824145
 _Isector_21 |  -.4704704   .2226187    -2.11   0.035    -.9070907   -.0338502
 _Isector_22 |  -.0775367   .0940925    -0.82   0.410    -.2620796    .1070062
 _Isector_23 |          0  (omitted)
 _Isector_24 |  -.2655329   .1318482    -2.01   0.044    -.5241257   -.0069401
 _Isector_25 |  -.0143062   .0836491    -0.17   0.864    -.1783665    .1497541
 _Isector_26 |  -.0832717   .0896073    -0.93   0.353    -.2590178    .0924743
 _Isector_27 |  -.0806346   .1099317    -0.73   0.463    -.2962426    .1349735
 _Isector_28 |          0  (omitted)
 _Isector_29 |  -.1377045   .0894997    -1.54   0.124    -.3132394    .0378305
 _Isector_30 |  -.2211288   .0994211    -2.22   0.026    -.4161225   -.0261351
 _Isector_31 |   -.015717    .096199    -0.16   0.870    -.2043912    .1729573
 _Isector_32 |          0  (omitted)
 _Isector_33 |          0  (omitted)
 _Isector_34 |          0  (omitted)
 _Isector_35 |  -.1800483   .2130344    -0.85   0.398     -.597871    .2377744
 _Isector_36 |          0  (omitted)
 _Isector_37 |          0  (omitted)
 _Isector_38 |   .0676691   .1161502     0.58   0.560    -.1601353    .2954736
 _Isector_39 |  -.0906185   .1006344    -0.90   0.368    -.2879919    .1067549
 _Isector_40 |  -.0569084   .2687835    -0.21   0.832    -.5840712    .4702544
 _Isector_41 |  -.0566475   .0769091    -0.74   0.461    -.2074887    .0941936
 _Isector_42 |  -.0934104   .0924008    -1.01   0.312    -.2746354    .0878145
 _Isector_43 |          0  (omitted)
 _Isector_44 |   .1068597    .133729     0.80   0.424    -.1554218    .3691412
 _Isector_45 |          0  (omitted)
 _Isector_46 |          0  (omitted)
   _Ieduc_32 |          0  (omitted)
   _Ieduc_33 |          0  (omitted)
   _Ieduc_35 |   .0581148   .0586616     0.99   0.322    -.0569378    .1731673
   _Ieduc_36 |          0  (omitted)
   _Ieduc_37 |          0  (omitted)
   _Ieduc_38 |          0  (omitted)
   _Ieduc_53 |          0  (omitted)
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |   .9462461   .3170615     2.98   0.003     .3243961    1.568096
   _Ieduc_56 |          0  (omitted)
   _Ieduc_57 |          0  (omitted)
   _Ieduc_63 |          0  (omitted)
   _Ieduc_64 |          0  (omitted)
   _Ieduc_65 |   1.006366   .2843111     3.54   0.000     .4487489    1.563983
   _Ieduc_66 |          0  (omitted)
   _Ieduc_72 |          0  (omitted)
   _Ieduc_73 |          0  (omitted)
   _Ieduc_74 |   1.077198   .2810478     3.83   0.000     .5259813    1.628415
   _Ieduc_75 |   1.002807   .2254122     4.45   0.000     .5607081    1.444906
   _Ieduc_76 |          0  (omitted)
   _Ieduc_77 |          0  (omitted)
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |   1.069996   .2801414     3.82   0.000     .5205568    1.619435
   _Ieduc_85 |   1.091559   .2504315     4.36   0.000       .60039    1.582728
   _Ieduc_86 |          0  (omitted)
   _Ieduc_87 |          0  (omitted)
   _Ieduc_99 |   .3823923   .1135269     3.37   0.001      .159733    .6050517
   _Inuts2_2 |  -.1096466   .0708154    -1.55   0.122    -.2485362    .0292431
   _Inuts2_3 |   .0230207   .0779995     0.30   0.768     -.129959    .1760005
   _Inuts2_4 |   -.015352   .0735392    -0.21   0.835    -.1595837    .1288797
   _Inuts2_5 |  -.0191275    .039427    -0.49   0.628    -.0964554    .0582004
   _Inuts2_6 |          0  (omitted)
        pats |   .0109818   .0142456     0.77   0.441     -.016958    .0389216
     lagpats |   -.002067   .0214089    -0.10   0.923    -.0440562    .0399222
     lagpat2 |  -.0020149   .0188798    -0.11   0.915    -.0390437    .0350139
     lagpat3 |   .0266209   .0196261     1.36   0.175    -.0118715    .0651134
     lagpat4 |   .0364911   .0209785     1.74   0.082    -.0046538    .0776361
     lagpat5 |   .0598492   .0201435     2.97   0.003     .0203418    .0993565
     lagpat6 |   .0263833   .0141865     1.86   0.063    -.0014405    .0542072
       _cons |   4.412562   1.142657     3.86   0.000     2.171479    6.653646
-------------+----------------------------------------------------------------
     sigma_u |  .72399348
     sigma_e |   .3478181
         rho |  .81247995   (fraction of variance due to u_i)
------------------------------------------------------------------------------

. xi: xtreg logwage3 $expl_17, fe robust  ;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: female omitted because of collinearity
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Ivuosi_1996 omitted because of collinearity
note: _Ivuosi_1997 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_2 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_7 omitted because of collinearity
note: _Isector_8 omitted because of collinearity
note: _Isector_11 omitted because of collinearity
note: _Isector_15 omitted because of collinearity
note: _Isector_23 omitted because of collinearity
note: _Isector_28 omitted because of collinearity
note: _Isector_32 omitted because of collinearity
note: _Isector_33 omitted because of collinearity
note: _Isector_34 omitted because of collinearity
note: _Isector_36 omitted because of collinearity
note: _Isector_37 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Isector_45 omitted because of collinearity
note: _Isector_46 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_64 omitted because of collinearity
note: _Ieduc_66 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_73 omitted because of collinearity
note: _Ieduc_76 omitted because of collinearity
note: _Ieduc_77 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity
note: _Ieduc_86 omitted because of collinearity
note: _Ieduc_87 omitted because of collinearity
note: _Inuts2_6 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =      4933
Group variable: id                              Number of groups   =      1789

R-sq:  within  = 0.0767                         Obs per group: min =         1
       between = 0.0488                                        avg =       2.8
       overall = 0.0514                                        max =         3

                                                F(44,1788)         =         .
corr(u_i, Xb)  = -0.6204                        Prob > F           =         .

                                  (Std. Err. adjusted for 1789 clusters in id)
------------------------------------------------------------------------------
             |               Robust
    logwage3 |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .1640385    .045893     3.57   0.000     .0740289    .2540481
        age2 |  -.0012312   .0004714    -2.61   0.009    -.0021557   -.0003067
      tenure |   .0034844   .0017865     1.95   0.051    -.0000194    .0069883
      female |          0  (omitted)
      months |   .0056706   .0039838     1.42   0.155    -.0021429     .013484
         emp |   .0048198   .0009913     4.86   0.000     .0028757     .006764
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |          0  (omitted)
_Ivuosi_1995 |          0  (omitted)
_Ivuosi_1996 |          0  (omitted)
_Ivuosi_1997 |          0  (omitted)
_Ivuosi_1998 |  -.0248703   .0089271    -2.79   0.005    -.0423788   -.0073617
_Ivuosi_1999 |          0  (omitted)
  _Isector_2 |          0  (omitted)
  _Isector_3 |          0  (omitted)
  _Isector_4 |   .0168115   .0159236     1.06   0.291    -.0144193    .0480423
  _Isector_5 |  -.2239624   .1047545    -2.14   0.033    -.4294165   -.0185082
  _Isector_6 |          0  (omitted)
  _Isector_7 |          0  (omitted)
  _Isector_8 |          0  (omitted)
  _Isector_9 |   .0675801   .1641483     0.41   0.681    -.2543627    .3895229
 _Isector_10 |  -.3217675   .2793146    -1.15   0.249    -.8695848    .2260498
 _Isector_11 |          0  (omitted)
 _Isector_12 |  -.2048041    .098431    -2.08   0.038     -.397856   -.0117521
 _Isector_13 |  -.0235316   .0782366    -0.30   0.764    -.1769764    .1299131
 _Isector_14 |  -.0930144   .1227589    -0.76   0.449    -.3337805    .1477516
 _Isector_15 |          0  (omitted)
 _Isector_16 |  -.2451981   .1207156    -2.03   0.042    -.4819566   -.0084397
 _Isector_17 |   -.038855    .191593    -0.20   0.839    -.4146247    .3369148
 _Isector_18 |  -.0638236   .0977203    -0.65   0.514    -.2554816    .1278345
 _Isector_19 |  -.0989421    .195207    -0.51   0.612    -.4817998    .2839157
 _Isector_20 |  -.0208829   .1171962    -0.18   0.859    -.2507389    .2089731
 _Isector_21 |  -.4419359   .2244603    -1.97   0.049     -.882168   -.0017037
 _Isector_22 |  -.0519466    .099866    -0.52   0.603     -.247813    .1439197
 _Isector_23 |          0  (omitted)
 _Isector_24 |  -.2333801   .1349444    -1.73   0.084    -.4980453    .0312852
 _Isector_25 |   .0053356   .0841303     0.06   0.949    -.1596684    .1703395
 _Isector_26 |  -.0598256   .0952023    -0.63   0.530    -.2465451    .1268939
 _Isector_27 |  -.0175952   .1144511    -0.15   0.878    -.2420672    .2068767
 _Isector_28 |          0  (omitted)
 _Isector_29 |   -.108318   .0961262    -1.13   0.260    -.2968495    .0802135
 _Isector_30 |  -.1917693   .1053325    -1.82   0.069    -.3983571    .0148185
 _Isector_31 |  -.0280878   .1102597    -0.25   0.799    -.2443393    .1881637
 _Isector_32 |          0  (omitted)
 _Isector_33 |          0  (omitted)
 _Isector_34 |          0  (omitted)
 _Isector_35 |  -.1215564     .21658    -0.56   0.575     -.546333    .3032202
 _Isector_36 |          0  (omitted)
 _Isector_37 |          0  (omitted)
 _Isector_38 |   .1018268   .1186367     0.86   0.391    -.1308543    .3345078
 _Isector_39 |  -.0258327   .0888309    -0.29   0.771    -.2000561    .1483906
 _Isector_40 |   .0079493   .2719274     0.03   0.977    -.5253798    .5412783
 _Isector_41 |  -.0319903   .0827396    -0.39   0.699    -.1942667    .1302861
 _Isector_42 |  -.0607413   .0978292    -0.62   0.535    -.2526129    .1311304
 _Isector_43 |          0  (omitted)
 _Isector_44 |   .0765572   .1662257     0.46   0.645      -.24946    .4025743
 _Isector_45 |          0  (omitted)
 _Isector_46 |          0  (omitted)
   _Ieduc_32 |          0  (omitted)
   _Ieduc_33 |          0  (omitted)
   _Ieduc_35 |   .0568662    .045195     1.26   0.208    -.0317743    .1455067
   _Ieduc_36 |          0  (omitted)
   _Ieduc_37 |          0  (omitted)
   _Ieduc_38 |          0  (omitted)
   _Ieduc_53 |          0  (omitted)
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |   .8586568   .3133669     2.74   0.006      .244053    1.473261
   _Ieduc_56 |          0  (omitted)
   _Ieduc_57 |          0  (omitted)
   _Ieduc_63 |          0  (omitted)
   _Ieduc_64 |          0  (omitted)
   _Ieduc_65 |   .9548759   .2883628     3.31   0.001     .3893124    1.520439
   _Ieduc_66 |          0  (omitted)
   _Ieduc_72 |          0  (omitted)
   _Ieduc_73 |          0  (omitted)
   _Ieduc_74 |   1.031193   .2847077     3.62   0.000     .4727985    1.589588
   _Ieduc_75 |   .9525339   .2294739     4.15   0.000     .5024687    1.402599
   _Ieduc_76 |          0  (omitted)
   _Ieduc_77 |          0  (omitted)
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |     1.0104   .2856217     3.54   0.000     .4502127    1.570587
   _Ieduc_85 |   1.052852   .2633662     4.00   0.000     .5363141     1.56939
   _Ieduc_86 |          0  (omitted)
   _Ieduc_87 |          0  (omitted)
   _Ieduc_99 |   .3530838   .1099751     3.21   0.001     .1373905    .5687771
   _Inuts2_2 |  -.0965146   .0707082    -1.36   0.172    -.2351941    .0421649
   _Inuts2_3 |    .022637   .0786428     0.29   0.773    -.1316044    .1768783
   _Inuts2_4 |    .015067   .0728249     0.21   0.836    -.1277638    .1578978
   _Inuts2_5 |    .033828   .0577573     0.59   0.558    -.0794509    .1471068
   _Inuts2_6 |          0  (omitted)
        pats |   .0151681    .012759     1.19   0.235     -.009856    .0401922
     lagcits |   .0002048   .0013008     0.16   0.875    -.0023465    .0027561
     lagcit2 |   .0030628   .0014358     2.13   0.033     .0002469    .0058788
     lagcit3 |   .0048428   .0017758     2.73   0.006       .00136    .0083256
     lagcit4 |   .0044421   .0018564     2.39   0.017     .0008013    .0080829
     lagcit5 |   .0039517   .0017711     2.23   0.026     .0004781    .0074253
     lagcit6 |   .0036549   .0020837     1.75   0.080    -.0004318    .0077416
       _cons |   5.026366   1.157123     4.34   0.000      2.75691    7.295822
-------------+----------------------------------------------------------------
     sigma_u |   .6950279
     sigma_e |  .34648101
         rho |  .80095087   (fraction of variance due to u_i)
------------------------------------------------------------------------------

. xi: xtreg logwage3 $expl_0 $expl_cg,  fe robust  ;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: female omitted because of collinearity
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Ivuosi_1996 omitted because of collinearity
note: _Ivuosi_1997 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_2 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_7 omitted because of collinearity
note: _Isector_8 omitted because of collinearity
note: _Isector_11 omitted because of collinearity
note: _Isector_15 omitted because of collinearity
note: _Isector_23 omitted because of collinearity
note: _Isector_28 omitted because of collinearity
note: _Isector_32 omitted because of collinearity
note: _Isector_33 omitted because of collinearity
note: _Isector_34 omitted because of collinearity
note: _Isector_36 omitted because of collinearity
note: _Isector_37 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Isector_45 omitted because of collinearity
note: _Isector_46 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_64 omitted because of collinearity
note: _Ieduc_66 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_73 omitted because of collinearity
note: _Ieduc_76 omitted because of collinearity
note: _Ieduc_77 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity
note: _Ieduc_86 omitted because of collinearity
note: _Ieduc_87 omitted because of collinearity
note: _Inuts2_6 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =      4933
Group variable: id                              Number of groups   =      1789

R-sq:  within  = 0.0846                         Obs per group: min =         1
       between = 0.0467                                        avg =       2.8
       overall = 0.0495                                        max =         3

                                                F(72,1788)         =         .
corr(u_i, Xb)  = -0.6640                        Prob > F           =         .

                                  (Std. Err. adjusted for 1789 clusters in id)
------------------------------------------------------------------------------
             |               Robust
    logwage3 |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |    .178127   .0456113     3.91   0.000     .0886699    .2675842
        age2 |  -.0013135   .0004698    -2.80   0.005    -.0022348   -.0003921
      tenure |   .0035301   .0018774     1.88   0.060    -.0001519    .0072122
      female |          0  (omitted)
      months |   .0076089    .003925     1.94   0.053    -.0000892    .0153069
         emp |   .0048124   .0009995     4.81   0.000     .0028521    .0067727
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |          0  (omitted)
_Ivuosi_1995 |          0  (omitted)
_Ivuosi_1996 |          0  (omitted)
_Ivuosi_1997 |          0  (omitted)
_Ivuosi_1998 |  -.0247728   .0088792    -2.79   0.005    -.0421875    -.007358
_Ivuosi_1999 |          0  (omitted)
  _Isector_2 |          0  (omitted)
  _Isector_3 |          0  (omitted)
  _Isector_4 |   .0038717    .044014     0.09   0.930    -.0824525    .0901959
  _Isector_5 |  -.2442857   .1162756    -2.10   0.036    -.4723362   -.0162353
  _Isector_6 |          0  (omitted)
  _Isector_7 |          0  (omitted)
  _Isector_8 |          0  (omitted)
  _Isector_9 |   .0841571   .1856448     0.45   0.650    -.2799464    .4482607
 _Isector_10 |   -.326442   .2817746    -1.16   0.247    -.8790842    .2262001
 _Isector_11 |          0  (omitted)
 _Isector_12 |  -.1915693   .1129879    -1.70   0.090    -.4131715    .0300328
 _Isector_13 |  -.0263303   .0925007    -0.28   0.776    -.2077511    .1550906
 _Isector_14 |  -.1077844   .1350596    -0.80   0.425    -.3726756    .1571069
 _Isector_15 |          0  (omitted)
 _Isector_16 |  -.2355964   .1331959    -1.77   0.077    -.4968324    .0256396
 _Isector_17 |  -.0262904   .2048148    -0.13   0.898    -.4279919    .3754112
 _Isector_18 |  -.0535897   .1079197    -0.50   0.620    -.2652516    .1580723
 _Isector_19 |  -.0731211   .2053549    -0.36   0.722    -.4758819    .3296398
 _Isector_20 |   .0133775   .1315395     0.10   0.919    -.2446097    .2713648
 _Isector_21 |  -.4184578   .2295674    -1.82   0.068    -.8687063    .0317908
 _Isector_22 |  -.0438689   .1115336    -0.39   0.694    -.2626188     .174881
 _Isector_23 |          0  (omitted)
 _Isector_24 |  -.2224811   .1428945    -1.56   0.120    -.5027388    .0577766
 _Isector_25 |   .0080374   .1078834     0.07   0.941    -.2035534    .2196283
 _Isector_26 |  -.0186505   .1076788    -0.17   0.863      -.22984    .1925389
 _Isector_27 |  -.0165373    .130155    -0.13   0.899    -.2718092    .2387347
 _Isector_28 |          0  (omitted)
 _Isector_29 |  -.1006807   .1057944    -0.95   0.341    -.3081743    .1068129
 _Isector_30 |  -.1585428   .1159539    -1.37   0.172    -.3859621    .0688765
 _Isector_31 |   .0975127   .1151902     0.85   0.397    -.1284088    .3234343
 _Isector_32 |          0  (omitted)
 _Isector_33 |          0  (omitted)
 _Isector_34 |          0  (omitted)
 _Isector_35 |  -.1067506   .2232713    -0.48   0.633    -.5446508    .3311496
 _Isector_36 |          0  (omitted)
 _Isector_37 |          0  (omitted)
 _Isector_38 |   .1050537   .1306857     0.80   0.422     -.151259    .3613665
 _Isector_39 |  -.0127474   .1181622    -0.11   0.914    -.2444979    .2190032
 _Isector_40 |   .0577109   .2838907     0.20   0.839    -.4990816    .6145034
 _Isector_41 |  -.0265428   .0967054    -0.27   0.784    -.2162104    .1631247
 _Isector_42 |  -.0444713   .1079776    -0.41   0.680     -.256247    .1673043
 _Isector_43 |          0  (omitted)
 _Isector_44 |   .0962058   .1816019     0.53   0.596    -.2599685    .4523801
 _Isector_45 |          0  (omitted)
 _Isector_46 |          0  (omitted)
   _Ieduc_32 |          0  (omitted)
   _Ieduc_33 |          0  (omitted)
   _Ieduc_35 |   .0856585   .0727872     1.18   0.239    -.0570985    .2284155
   _Ieduc_36 |          0  (omitted)
   _Ieduc_37 |          0  (omitted)
   _Ieduc_38 |          0  (omitted)
   _Ieduc_53 |          0  (omitted)
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |   .9803444   .3414592     2.87   0.004     .3106433    1.650045
   _Ieduc_56 |          0  (omitted)
   _Ieduc_57 |          0  (omitted)
   _Ieduc_63 |          0  (omitted)
   _Ieduc_64 |          0  (omitted)
   _Ieduc_65 |   1.032177   .3069424     3.36   0.001     .4301732     1.63418
   _Ieduc_66 |          0  (omitted)
   _Ieduc_72 |          0  (omitted)
   _Ieduc_73 |          0  (omitted)
   _Ieduc_74 |   1.141915   .3058918     3.73   0.000     .5419715    1.741858
   _Ieduc_75 |   1.059108   .2521259     4.20   0.000     .5646161    1.553601
   _Ieduc_76 |          0  (omitted)
   _Ieduc_77 |          0  (omitted)
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |   1.120957   .3149354     3.56   0.000      .503277    1.738637
   _Ieduc_85 |   1.123827   .2792481     4.02   0.000       .57614    1.671514
   _Ieduc_86 |          0  (omitted)
   _Ieduc_87 |          0  (omitted)
   _Ieduc_99 |   .3639502   .1303951     2.79   0.005     .1082074     .619693
   _Inuts2_2 |  -.1043758   .0741877    -1.41   0.160    -.2498794    .0411278
   _Inuts2_3 |   .0290407   .0863087     0.34   0.737    -.1402359    .1983172
   _Inuts2_4 |  -.0205089   .0750327    -0.27   0.785    -.1676699    .1266521
   _Inuts2_5 |   .0254075   .0723781     0.35   0.726     -.116547     .167362
   _Inuts2_6 |          0  (omitted)
      nocits |  -.0207493   .0256985    -0.81   0.420    -.0711514    .0296529
      cits10 |  -.0325985   .0217187    -1.50   0.134    -.0751952    .0099983
      cits20 |  -.0179612   .0455264    -0.39   0.693    -.1072518    .0713294
      cits30 |  -.0026488   .0711747    -0.04   0.970    -.1422431    .1369456
     topcits |   .0268659   .0900251     0.30   0.765    -.1496997    .2034315
      lagnoc |  -.0531759   .0307856    -1.73   0.084    -.1135554    .0072036
      lag10c |  -.0410484   .0287886    -1.43   0.154    -.0975111    .0154144
      lag20c |  -.0070787   .0496851    -0.14   0.887    -.1045256    .0903683
      lag30c |  -.0572192   .1226804    -0.47   0.641    -.2978312    .1833928
     lagtopc |  -.0301068     .10035    -0.30   0.764    -.2269224    .1667087
     lagnoc2 |  -.1124261   .0545767    -2.06   0.040    -.2194668   -.0053854
     lag10c2 |  -.0157349   .0307646    -0.51   0.609    -.0760731    .0446034
     lag20c2 |  -.0295936   .0503353    -0.59   0.557    -.1283159    .0691287
     lag30c2 |  -.0644349   .1090392    -0.59   0.555    -.2782927    .1494229
    lagtopc2 |   .1592875   .1150158     1.38   0.166    -.0662921    .3848671
     lagnoc3 |  -.0569564   .0459395    -1.24   0.215    -.1470571    .0331444
     lag10c3 |  -.0001001   .0289473    -0.00   0.997    -.0568742    .0566739
     lag20c3 |  -.0290794   .0628403    -0.46   0.644    -.1523276    .0941688
     lag30c3 |   .0556816   .1107833     0.50   0.615    -.1615967    .2729599
     lagtop3 |   .2582635   .1193535     2.16   0.031     .0241764    .4923505
     lagnoc4 |  -.0915467   .0535601    -1.71   0.088    -.1965937    .0135003
     lag10c4 |    .010305   .0323461     0.32   0.750    -.0531353    .0737452
     lag20c4 |   -.044368   .0578663    -0.77   0.443    -.1578608    .0691248
     lag30c4 |  -.0056837    .105772    -0.05   0.957    -.2131335     .201766
    lagtopc4 |   .3544483   .1144517     3.10   0.002     .1299751    .5789215
     lagnoc5 |  -.0803959   .0484759    -1.66   0.097    -.1754713    .0146796
     lag10c5 |    .057274   .0303422     1.89   0.059    -.0022359     .116784
     lag20c5 |   .0399497   .0429581     0.93   0.353    -.0443036     .124203
     lag30c5 |   .0768567   .1051567     0.73   0.465    -.1293864    .2830997
    lagtopc5 |   .3334956   .1207003     2.76   0.006     .0967672    .5702241
     lagnoc6 |  -.0677534   .0481593    -1.41   0.160    -.1622079    .0267011
     lag10c6 |   .0197587   .0247153     0.80   0.424    -.0287152    .0682326
     lag20c6 |  -.0137364   .0318326    -0.43   0.666    -.0761694    .0486965
     lag30c6 |   .0492937   .0661957     0.74   0.457    -.0805354    .1791229
    lagtopc6 |    .256553   .1261098     2.03   0.042     .0092149    .5038911
       _cons |    4.50033   1.148763     3.92   0.000     2.247271    6.753388
-------------+----------------------------------------------------------------
     sigma_u |  .72881515
     sigma_e |  .34655883
         rho |  .81558772   (fraction of variance due to u_i)
------------------------------------------------------------------------------

. xi: xtreg logwage5 $expl_7, fe robust  ;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: female omitted because of collinearity
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Ivuosi_1996 omitted because of collinearity
note: _Ivuosi_1997 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_2 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_7 omitted because of collinearity
note: _Isector_8 omitted because of collinearity
note: _Isector_11 omitted because of collinearity
note: _Isector_15 omitted because of collinearity
note: _Isector_23 omitted because of collinearity
note: _Isector_28 omitted because of collinearity
note: _Isector_32 omitted because of collinearity
note: _Isector_33 omitted because of collinearity
note: _Isector_34 omitted because of collinearity
note: _Isector_36 omitted because of collinearity
note: _Isector_37 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Isector_45 omitted because of collinearity
note: _Isector_46 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_64 omitted because of collinearity
note: _Ieduc_66 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_73 omitted because of collinearity
note: _Ieduc_76 omitted because of collinearity
note: _Ieduc_77 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity
note: _Ieduc_86 omitted because of collinearity
note: _Ieduc_87 omitted because of collinearity
note: _Inuts2_6 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =      4936
Group variable: id                              Number of groups   =      1789

R-sq:  within  = 0.0976                         Obs per group: min =         1
       between = 0.0306                                        avg =       2.8
       overall = 0.0328                                        max =         3

                                                F(44,1788)         =         .
corr(u_i, Xb)  = -0.7120                        Prob > F           =         .

                                  (Std. Err. adjusted for 1789 clusters in id)
------------------------------------------------------------------------------
             |               Robust
    logwage5 |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .2273883   .0419835     5.42   0.000     .1450464    .3097302
        age2 |  -.0017668   .0004373    -4.04   0.000    -.0026244   -.0009092
      tenure |   .0043644   .0022934     1.90   0.057    -.0001337    .0088625
      female |          0  (omitted)
      months |   .0086668   .0029773     2.91   0.004     .0028274    .0145062
         emp |   .0054708   .0009988     5.48   0.000     .0035119    .0074297
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |          0  (omitted)
_Ivuosi_1995 |          0  (omitted)
_Ivuosi_1996 |          0  (omitted)
_Ivuosi_1997 |          0  (omitted)
_Ivuosi_1998 |  -.0328604   .0087044    -3.78   0.000    -.0499323   -.0157886
_Ivuosi_1999 |          0  (omitted)
  _Isector_2 |          0  (omitted)
  _Isector_3 |          0  (omitted)
  _Isector_4 |   .0147308   .0191624     0.77   0.442    -.0228523    .0523139
  _Isector_5 |  -.2293476   .1097446    -2.09   0.037    -.4445888   -.0141064
  _Isector_6 |          0  (omitted)
  _Isector_7 |          0  (omitted)
  _Isector_8 |          0  (omitted)
  _Isector_9 |   .2450285   .2609054     0.94   0.348     -.266683      .75674
 _Isector_10 |  -.4037778   .2925877    -1.38   0.168    -.9776275     .170072
 _Isector_11 |          0  (omitted)
 _Isector_12 |  -.2358389   .0987689    -2.39   0.017    -.4295535   -.0421244
 _Isector_13 |  -.0474674   .0762773    -0.62   0.534    -.1970695    .1021347
 _Isector_14 |  -.0987616   .1385342    -0.71   0.476    -.3704675    .1729443
 _Isector_15 |          0  (omitted)
 _Isector_16 |   .0086492   .1970247     0.04   0.965    -.3777737     .395072
 _Isector_17 |   -.036941   .1823879    -0.20   0.840    -.3946569    .3207748
 _Isector_18 |  -.0924167    .102484    -0.90   0.367    -.2934177    .1085843
 _Isector_19 |  -.0888667   .1929331    -0.46   0.645    -.4672648    .2895314
 _Isector_20 |   .0206735   .1200147     0.17   0.863    -.2147103    .2560572
 _Isector_21 |  -.4745122   .2072176    -2.29   0.022    -.8809264   -.0680981
 _Isector_22 |   -.053274   .1042817    -0.51   0.610    -.2578007    .1512528
 _Isector_23 |          0  (omitted)
 _Isector_24 |  -.1720265   .1641243    -1.05   0.295    -.4939221    .1498691
 _Isector_25 |  -.0989666   .0827639    -1.20   0.232    -.2612908    .0633577
 _Isector_26 |  -.0557474   .1001546    -0.56   0.578    -.2521797     .140685
 _Isector_27 |  -.0058605   .1211428    -0.05   0.961    -.2434569    .2317358
 _Isector_28 |          0  (omitted)
 _Isector_29 |  -.1053875   .1105366    -0.95   0.341     -.322182     .111407
 _Isector_30 |  -.2078373   .1042068    -1.99   0.046    -.4122172   -.0034573
 _Isector_31 |   .0345676   .1009133     0.34   0.732    -.1633528     .232488
 _Isector_32 |          0  (omitted)
 _Isector_33 |          0  (omitted)
 _Isector_34 |          0  (omitted)
 _Isector_35 |  -.1300303    .208379    -0.62   0.533    -.5387223    .2786617
 _Isector_36 |          0  (omitted)
 _Isector_37 |          0  (omitted)
 _Isector_38 |   .1088754   .1158663     0.94   0.348    -.1183722    .3361229
 _Isector_39 |  -.1342313   .1062498    -1.26   0.207    -.3426181    .0741555
 _Isector_40 |   .0450583   .2628514     0.17   0.864    -.4704699    .5605865
 _Isector_41 |  -.0857391   .0881415    -0.97   0.331    -.2586102    .0871321
 _Isector_42 |   -.052772   .0969528    -0.54   0.586    -.2429246    .1373807
 _Isector_43 |          0  (omitted)
 _Isector_44 |   .1314068   .1264959     1.04   0.299    -.1166885    .3795021
 _Isector_45 |          0  (omitted)
 _Isector_46 |          0  (omitted)
   _Ieduc_32 |          0  (omitted)
   _Ieduc_33 |          0  (omitted)
   _Ieduc_35 |   .0479384   .0579479     0.83   0.408    -.0657143     .161591
   _Ieduc_36 |          0  (omitted)
   _Ieduc_37 |          0  (omitted)
   _Ieduc_38 |          0  (omitted)
   _Ieduc_53 |          0  (omitted)
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |   .9357566   .2821079     3.32   0.001     .3824608    1.489052
   _Ieduc_56 |          0  (omitted)
   _Ieduc_57 |          0  (omitted)
   _Ieduc_63 |          0  (omitted)
   _Ieduc_64 |          0  (omitted)
   _Ieduc_65 |   .9788416   .2460192     3.98   0.000     .4963262    1.461357
   _Ieduc_66 |          0  (omitted)
   _Ieduc_72 |          0  (omitted)
   _Ieduc_73 |          0  (omitted)
   _Ieduc_74 |   1.042069   .2438874     4.27   0.000     .5637345    1.520403
   _Ieduc_75 |    .965133   .1963815     4.91   0.000     .5799715    1.350294
   _Ieduc_76 |          0  (omitted)
   _Ieduc_77 |          0  (omitted)
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |   1.015105   .2435759     4.17   0.000     .5373819    1.492829
   _Ieduc_85 |    1.14662   .2282453     5.02   0.000     .6989648    1.594276
   _Ieduc_86 |          0  (omitted)
   _Ieduc_87 |          0  (omitted)
   _Ieduc_99 |   .4193846   .1105475     3.79   0.000     .2025686    .6362005
   _Inuts2_2 |   -.055446   .0798826    -0.69   0.488    -.2121191    .1012271
   _Inuts2_3 |   .0489226   .0867087     0.56   0.573    -.1211385    .2189838
   _Inuts2_4 |  -.0053172   .0828559    -0.06   0.949    -.1678219    .1571875
   _Inuts2_5 |   .0184858   .0424734     0.44   0.663     -.064817    .1017886
   _Inuts2_6 |          0  (omitted)
        pats |   .0113265   .0142348     0.80   0.426     -.016592    .0392451
     lagpats |   .0049534   .0199254     0.25   0.804     -.034126    .0440328
     lagpat2 |   .0004611   .0175082     0.03   0.979    -.0338777    .0347998
     lagpat3 |   .0266456   .0192284     1.39   0.166     -.011067    .0643582
     lagpat4 |   .0312214   .0205754     1.52   0.129    -.0091329    .0715757
     lagpat5 |   .0556766   .0187172     2.97   0.003     .0189666    .0923865
     lagpat6 |   .0192549   .0138238     1.39   0.164    -.0078577    .0463675
       _cons |   3.296632   1.014447     3.25   0.001     1.307006    5.286257
-------------+----------------------------------------------------------------
     sigma_u |  .79020636
     sigma_e |  .33429874
         rho |  .84819557   (fraction of variance due to u_i)
------------------------------------------------------------------------------

. xi: xtreg logwage5 $expl_17, fe robust  ;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: female omitted because of collinearity
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Ivuosi_1996 omitted because of collinearity
note: _Ivuosi_1997 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_2 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_7 omitted because of collinearity
note: _Isector_8 omitted because of collinearity
note: _Isector_11 omitted because of collinearity
note: _Isector_15 omitted because of collinearity
note: _Isector_23 omitted because of collinearity
note: _Isector_28 omitted because of collinearity
note: _Isector_32 omitted because of collinearity
note: _Isector_33 omitted because of collinearity
note: _Isector_34 omitted because of collinearity
note: _Isector_36 omitted because of collinearity
note: _Isector_37 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Isector_45 omitted because of collinearity
note: _Isector_46 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_64 omitted because of collinearity
note: _Ieduc_66 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_73 omitted because of collinearity
note: _Ieduc_76 omitted because of collinearity
note: _Ieduc_77 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity
note: _Ieduc_86 omitted because of collinearity
note: _Ieduc_87 omitted because of collinearity
note: _Inuts2_6 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =      4936
Group variable: id                              Number of groups   =      1789

R-sq:  within  = 0.1049                         Obs per group: min =         1
       between = 0.0368                                        avg =       2.8
       overall = 0.0403                                        max =         3

                                                F(44,1788)         =         .
corr(u_i, Xb)  = -0.6827                        Prob > F           =         .

                                  (Std. Err. adjusted for 1789 clusters in id)
------------------------------------------------------------------------------
             |               Robust
    logwage5 |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .2058891   .0422632     4.87   0.000     .1229987    .2887794
        age2 |   -.001562   .0004414    -3.54   0.000    -.0024277   -.0006962
      tenure |    .004084   .0022106     1.85   0.065    -.0002516    .0084195
      female |          0  (omitted)
      months |   .0073291   .0035271     2.08   0.038     .0004113    .0142468
         emp |   .0054673   .0010014     5.46   0.000     .0035032    .0074314
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |          0  (omitted)
_Ivuosi_1995 |          0  (omitted)
_Ivuosi_1996 |          0  (omitted)
_Ivuosi_1997 |          0  (omitted)
_Ivuosi_1998 |  -.0347126   .0089769    -3.87   0.000     -.052319   -.0171063
_Ivuosi_1999 |          0  (omitted)
  _Isector_2 |          0  (omitted)
  _Isector_3 |          0  (omitted)
  _Isector_4 |   .0134733    .016303     0.83   0.409    -.0185016    .0454482
  _Isector_5 |  -.2123564   .1151266    -1.84   0.065    -.4381533    .0134405
  _Isector_6 |          0  (omitted)
  _Isector_7 |          0  (omitted)
  _Isector_8 |          0  (omitted)
  _Isector_9 |   .2738502   .2579163     1.06   0.288    -.2319989    .7796993
 _Isector_10 |  -.3831632   .2885676    -1.33   0.184    -.9491284     .182802
 _Isector_11 |          0  (omitted)
 _Isector_12 |  -.2197311   .1027585    -2.14   0.033    -.4212705   -.0181917
 _Isector_13 |  -.0302175   .0815576    -0.37   0.711    -.1901757    .1297407
 _Isector_14 |  -.0653694   .1379081    -0.47   0.636    -.3358475    .2051086
 _Isector_15 |          0  (omitted)
 _Isector_16 |   .0366562   .2008254     0.18   0.855    -.3572209    .4305333
 _Isector_17 |  -.0306158   .1913675    -0.16   0.873    -.4059434    .3447118
 _Isector_18 |  -.0653646   .1080746    -0.60   0.545    -.2773303    .1466011
 _Isector_19 |  -.0876474   .1918131    -0.46   0.648    -.4638487     .288554
 _Isector_20 |   .0337063   .1228104     0.27   0.784    -.2071608    .2745733
 _Isector_21 |  -.4595674   .2084465    -2.20   0.028    -.8683917   -.0507431
 _Isector_22 |  -.0391436    .107747    -0.36   0.716    -.2504668    .1721797
 _Isector_23 |          0  (omitted)
 _Isector_24 |  -.1527971   .1658812    -0.92   0.357    -.4781384    .1725442
 _Isector_25 |  -.0882006   .0938359    -0.94   0.347    -.2722401    .0958389
 _Isector_26 |   -.046585    .102597    -0.45   0.650    -.2478077    .1546376
 _Isector_27 |   .0380209   .1233973     0.31   0.758    -.2039973     .280039
 _Isector_28 |          0  (omitted)
 _Isector_29 |  -.0874058    .116796    -0.75   0.454    -.3164767    .1416651
 _Isector_30 |  -.1927085   .1089716    -1.77   0.077    -.4064337    .0210166
 _Isector_31 |   .0117328   .1128295     0.10   0.917    -.2095587    .2330243
 _Isector_32 |          0  (omitted)
 _Isector_33 |          0  (omitted)
 _Isector_34 |          0  (omitted)
 _Isector_35 |  -.0860408   .2133176    -0.40   0.687    -.5044188    .3323372
 _Isector_36 |          0  (omitted)
 _Isector_37 |          0  (omitted)
 _Isector_38 |   .1332445   .1175677     1.13   0.257    -.0973399     .363829
 _Isector_39 |  -.0911581   .0972025    -0.94   0.348    -.2818007    .0994844
 _Isector_40 |   .0994482   .2638156     0.38   0.706     -.417971    .6168675
 _Isector_41 |  -.0757893   .0927112    -0.82   0.414     -.257623    .1060445
 _Isector_42 |  -.0345265   .1015263    -0.34   0.734    -.2336491    .1645962
 _Isector_43 |          0  (omitted)
 _Isector_44 |   .0933149   .1552881     0.60   0.548    -.2112504    .3978801
 _Isector_45 |          0  (omitted)
 _Isector_46 |          0  (omitted)
   _Ieduc_32 |          0  (omitted)
   _Ieduc_33 |          0  (omitted)
   _Ieduc_35 |   .0426894   .0450065     0.95   0.343    -.0455815    .1309602
   _Ieduc_36 |          0  (omitted)
   _Ieduc_37 |          0  (omitted)
   _Ieduc_38 |          0  (omitted)
   _Ieduc_53 |          0  (omitted)
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |   .8372362   .2779959     3.01   0.003     .2920052    1.382467
   _Ieduc_56 |          0  (omitted)
   _Ieduc_57 |          0  (omitted)
   _Ieduc_63 |          0  (omitted)
   _Ieduc_64 |          0  (omitted)
   _Ieduc_65 |   .9156694   .2487216     3.68   0.000     .4278538    1.403485
   _Ieduc_66 |          0  (omitted)
   _Ieduc_72 |          0  (omitted)
   _Ieduc_73 |          0  (omitted)
   _Ieduc_74 |   .9883941   .2463901     4.01   0.000     .5051512    1.471637
   _Ieduc_75 |   .9081741   .1995115     4.55   0.000     .5168738    1.299474
   _Ieduc_76 |          0  (omitted)
   _Ieduc_77 |          0  (omitted)
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |   .9553574   .2476422     3.86   0.000     .4696589    1.441056
   _Ieduc_85 |   1.097625   .2362141     4.65   0.000     .6343399    1.560909
   _Ieduc_86 |          0  (omitted)
   _Ieduc_87 |          0  (omitted)
   _Ieduc_99 |   .3836759    .107482     3.57   0.000     .1728723    .5944794
   _Inuts2_2 |  -.0417817   .0792774    -0.53   0.598    -.1972678    .1137043
   _Inuts2_3 |   .0430345   .0856479     0.50   0.615    -.1249461     .211015
   _Inuts2_4 |   .0227064   .0820765     0.28   0.782    -.1382695    .1836823
   _Inuts2_5 |   .0651552    .058239     1.12   0.263    -.0490684    .1793788
   _Inuts2_6 |          0  (omitted)
        pats |   .0136438   .0128363     1.06   0.288    -.0115318    .0388195
     lagcits |   .0002301   .0012312     0.19   0.852    -.0021847    .0026449
     lagcit2 |   .0029899   .0013468     2.22   0.027     .0003484    .0056314
     lagcit3 |   .0047948   .0017554     2.73   0.006     .0013518    .0082377
     lagcit4 |   .0043887   .0017606     2.49   0.013     .0009357    .0078417
     lagcit5 |   .0032873   .0016071     2.05   0.041     .0001354    .0064392
     lagcit6 |   .0030649   .0019128     1.60   0.109    -.0006866    .0068164
       _cons |   3.863305   1.029566     3.75   0.000     1.844027    5.882583
-------------+----------------------------------------------------------------
     sigma_u |  .75849728
     sigma_e |  .33295708
         rho |  .83843795   (fraction of variance due to u_i)
------------------------------------------------------------------------------

. xi: xtreg logwage5 $expl_0 $expl_cg,  fe robust  ;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: female omitted because of collinearity
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Ivuosi_1996 omitted because of collinearity
note: _Ivuosi_1997 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_2 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_7 omitted because of collinearity
note: _Isector_8 omitted because of collinearity
note: _Isector_11 omitted because of collinearity
note: _Isector_15 omitted because of collinearity
note: _Isector_23 omitted because of collinearity
note: _Isector_28 omitted because of collinearity
note: _Isector_32 omitted because of collinearity
note: _Isector_33 omitted because of collinearity
note: _Isector_34 omitted because of collinearity
note: _Isector_36 omitted because of collinearity
note: _Isector_37 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Isector_45 omitted because of collinearity
note: _Isector_46 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_64 omitted because of collinearity
note: _Ieduc_66 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_73 omitted because of collinearity
note: _Ieduc_76 omitted because of collinearity
note: _Ieduc_77 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity
note: _Ieduc_86 omitted because of collinearity
note: _Ieduc_87 omitted because of collinearity
note: _Inuts2_6 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =      4936
Group variable: id                              Number of groups   =      1789

R-sq:  within  = 0.1132                         Obs per group: min =         1
       between = 0.0366                                        avg =       2.8
       overall = 0.0402                                        max =         3

                                                F(72,1788)         =         .
corr(u_i, Xb)  = -0.7127                        Prob > F           =         .

                                  (Std. Err. adjusted for 1789 clusters in id)
------------------------------------------------------------------------------
             |               Robust
    logwage5 |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .2136493   .0419691     5.09   0.000     .1313357    .2959628
        age2 |  -.0015921    .000439    -3.63   0.000    -.0024531   -.0007312
      tenure |    .004296    .002329     1.84   0.065    -.0002718    .0088638
      female |          0  (omitted)
      months |   .0095497   .0036276     2.63   0.009     .0024349    .0166645
         emp |   .0054137   .0010075     5.37   0.000     .0034378    .0073897
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |          0  (omitted)
_Ivuosi_1995 |          0  (omitted)
_Ivuosi_1996 |          0  (omitted)
_Ivuosi_1997 |          0  (omitted)
_Ivuosi_1998 |  -.0342172   .0088976    -3.85   0.000    -.0516679   -.0167664
_Ivuosi_1999 |          0  (omitted)
  _Isector_2 |          0  (omitted)
  _Isector_3 |          0  (omitted)
  _Isector_4 |   .0228412   .0427021     0.53   0.593    -.0609101    .1065925
  _Isector_5 |  -.2205261   .1241272    -1.78   0.076    -.4639758    .0229237
  _Isector_6 |          0  (omitted)
  _Isector_7 |          0  (omitted)
  _Isector_8 |          0  (omitted)
  _Isector_9 |   .3042907   .2731314     1.11   0.265    -.2313996     .839981
 _Isector_10 |  -.3632182   .2942206    -1.23   0.217    -.9402707    .2138343
 _Isector_11 |          0  (omitted)
 _Isector_12 |   -.208228   .1149696    -1.81   0.070    -.4337168    .0172608
 _Isector_13 |  -.0292957   .0938731    -0.31   0.755    -.2134082    .1548169
 _Isector_14 |  -.0680857   .1487563    -0.46   0.647    -.3598402    .2236688
 _Isector_15 |          0  (omitted)
 _Isector_16 |   .0632051   .2063275     0.31   0.759    -.3414633    .4678734
 _Isector_17 |    -.01596   .2050021    -0.08   0.938    -.4180288    .3861089
 _Isector_18 |  -.0462255   .1155992    -0.40   0.689    -.2729493    .1804983
 _Isector_19 |  -.0513985   .2013815    -0.26   0.799    -.4463663    .3435694
 _Isector_20 |   .0744423   .1366107     0.54   0.586     -.193491    .3423757
 _Isector_21 |  -.4252979   .2123325    -2.00   0.045    -.8417438    -.008852
 _Isector_22 |  -.0216715   .1180433    -0.18   0.854    -.2531887    .2098458
 _Isector_23 |          0  (omitted)
 _Isector_24 |   -.133386   .1727901    -0.77   0.440    -.4722778    .2055058
 _Isector_25 |  -.0871644   .1010241    -0.86   0.388    -.2853022    .1109734
 _Isector_26 |  -.0038877   .1109983    -0.04   0.972    -.2215876    .2138123
 _Isector_27 |   .0467477   .1364271     0.34   0.732    -.2208258    .3143211
 _Isector_28 |          0  (omitted)
 _Isector_29 |  -.0663139   .1232454    -0.54   0.591    -.3080341    .1754063
 _Isector_30 |  -.1645858   .1179599    -1.40   0.163    -.3959396     .066768
 _Isector_31 |   .1189174   .1179664     1.01   0.314    -.1124491    .3502839
 _Isector_32 |          0  (omitted)
 _Isector_33 |          0  (omitted)
 _Isector_34 |          0  (omitted)
 _Isector_35 |  -.0550987   .2213124    -0.25   0.803    -.4891569    .3789594
 _Isector_36 |          0  (omitted)
 _Isector_37 |          0  (omitted)
 _Isector_38 |   .1436081   .1296199     1.11   0.268    -.1106144    .3978306
 _Isector_39 |  -.0568467   .1201759    -0.47   0.636    -.2925467    .1788533
 _Isector_40 |   .1542256   .2708181     0.57   0.569    -.3769278    .6853789
 _Isector_41 |  -.0645118   .1031403    -0.63   0.532    -.2667999    .1377764
 _Isector_42 |  -.0092756   .1103166    -0.08   0.933    -.2256388    .2070875
 _Isector_43 |          0  (omitted)
 _Isector_44 |   .1615456   .1576257     1.02   0.306    -.1476045    .4706956
 _Isector_45 |          0  (omitted)
 _Isector_46 |          0  (omitted)
   _Ieduc_32 |          0  (omitted)
   _Ieduc_33 |          0  (omitted)
   _Ieduc_35 |   .0453392    .077644     0.58   0.559    -.1069433    .1976217
   _Ieduc_36 |          0  (omitted)
   _Ieduc_37 |          0  (omitted)
   _Ieduc_38 |          0  (omitted)
   _Ieduc_53 |          0  (omitted)
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |   .9643191   .3055657     3.16   0.002     .3650157    1.563623
   _Ieduc_56 |          0  (omitted)
   _Ieduc_57 |          0  (omitted)
   _Ieduc_63 |          0  (omitted)
   _Ieduc_64 |          0  (omitted)
   _Ieduc_65 |   1.006441   .2655562     3.79   0.000     .4856073    1.527274
   _Ieduc_66 |          0  (omitted)
   _Ieduc_72 |          0  (omitted)
   _Ieduc_73 |          0  (omitted)
   _Ieduc_74 |   1.118017   .2658445     4.21   0.000     .5966182    1.639415
   _Ieduc_75 |   1.006953   .2191191     4.60   0.000     .5771967    1.436709
   _Ieduc_76 |          0  (omitted)
   _Ieduc_77 |          0  (omitted)
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |   1.085878   .2751091     3.95   0.000     .5463089    1.625447
   _Ieduc_85 |   1.182893   .2494692     4.74   0.000     .6936108    1.672175
   _Ieduc_86 |          0  (omitted)
   _Ieduc_87 |          0  (omitted)
   _Ieduc_99 |   .3860111   .1323533     2.92   0.004     .1264277    .6455944
   _Inuts2_2 |    -.04748   .0822569    -0.58   0.564    -.2088097    .1138498
   _Inuts2_3 |   .0566209   .0896443     0.63   0.528    -.1191976    .2324395
   _Inuts2_4 |  -.0091406   .0836301    -0.11   0.913    -.1731636    .1548824
   _Inuts2_5 |   .0568042   .0713652     0.80   0.426    -.0831637    .1967722
   _Inuts2_6 |          0  (omitted)
      nocits |  -.0090844   .0247048    -0.37   0.713    -.0575377    .0393688
      cits10 |  -.0327906   .0204958    -1.60   0.110    -.0729888    .0074075
      cits20 |    .011997   .0425598     0.28   0.778    -.0714751    .0954691
      cits30 |   .0497365    .066557     0.75   0.455    -.0808011    .1802742
     topcits |   .0110317   .0848941     0.13   0.897    -.1554703    .1775338
      lagnoc |  -.0215715   .0307807    -0.70   0.484    -.0819414    .0387985
      lag10c |  -.0487089   .0274023    -1.78   0.076    -.1024528     .005035
      lag20c |   .0078399   .0523367     0.15   0.881    -.0948077    .1104875
      lag30c |   .0070011   .1024428     0.07   0.946    -.1939191    .2079212
     lagtopc |  -.0340203   .0965475    -0.35   0.725    -.2233781    .1553374
     lagnoc2 |   -.086054   .0473456    -1.82   0.069    -.1789127    .0068046
     lag10c2 |  -.0236194   .0299518    -0.79   0.430    -.0823637    .0351248
     lag20c2 |  -.0404325   .0490484    -0.82   0.410    -.1366307    .0557657
     lag30c2 |   .0171737   .0946844     0.18   0.856    -.1685301    .2028774
    lagtopc2 |   .1685511   .1074302     1.57   0.117    -.0421508    .3792529
     lagnoc3 |  -.0343295   .0402158    -0.85   0.393    -.1132044    .0445454
     lag10c3 |   .0017805   .0287946     0.06   0.951    -.0546942    .0582552
     lag20c3 |  -.0225977   .0603009    -0.37   0.708    -.1408653    .0956699
     lag30c3 |   .1560141   .1050695     1.48   0.138    -.0500579     .362086
     lagtop3 |   .2440258   .1166293     2.09   0.037     .0152816    .4727699
     lagnoc4 |  -.0641835    .045122    -1.42   0.155     -.152681    .0243139
     lag10c4 |   .0096884   .0323851     0.30   0.765    -.0538281     .073205
     lag20c4 |  -.0510349   .0605235    -0.84   0.399    -.1697391    .0676692
     lag30c4 |   .0730674   .0926546     0.79   0.430    -.1086554    .2547901
    lagtopc4 |   .3393229   .1074997     3.16   0.002     .1284847    .5501612
     lagnoc5 |  -.0520395   .0444881    -1.17   0.242    -.1392937    .0352147
     lag10c5 |   .0553028   .0310533     1.78   0.075    -.0056017    .1162073
     lag20c5 |   .0517821     .05015     1.03   0.302    -.0465767    .1501409
     lag30c5 |   .1152234   .1005834     1.15   0.252    -.0820501    .3124968
    lagtopc5 |   .2646703   .1045853     2.53   0.011      .059548    .4697926
     lagnoc6 |  -.0519782   .0357519    -1.45   0.146     -.122098    .0181417
     lag10c6 |   .0091035   .0255819     0.36   0.722    -.0410701     .059277
     lag20c6 |   -.013754   .0326205    -0.42   0.673    -.0777323    .0502244
     lag30c6 |   .0446233   .0614249     0.73   0.468    -.0758489    .1650955
    lagtopc6 |   .1845679   .1161661     1.59   0.112    -.0432677    .4124036
       _cons |   3.485089   1.022769     3.41   0.001      1.47914    5.491037
-------------+----------------------------------------------------------------
     sigma_u |  .78983174
     sigma_e |  .33291172
         rho |  .84914171   (fraction of variance due to u_i)
------------------------------------------------------------------------------

. *-----------------------------------------------------;
. *removing year 1999;
.  /* SECTION 5.5. ROBUSTNESS TEST #1 */
> *-----------------------------------------------------;
. xi: xtreg logwage $expl_7 if vuosi!=1999, fe robust  ;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: female omitted because of collinearity
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Ivuosi_1996 omitted because of collinearity
note: _Ivuosi_1997 omitted because of collinearity
note: _Ivuosi_1998 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_2 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_7 omitted because of collinearity
note: _Isector_8 omitted because of collinearity
note: _Isector_9 omitted because of collinearity
note: _Isector_11 omitted because of collinearity
note: _Isector_15 omitted because of collinearity
note: _Isector_25 omitted because of collinearity
note: _Isector_27 omitted because of collinearity
note: _Isector_28 omitted because of collinearity
note: _Isector_31 omitted because of collinearity
note: _Isector_32 omitted because of collinearity
note: _Isector_33 omitted because of collinearity
note: _Isector_34 omitted because of collinearity
note: _Isector_36 omitted because of collinearity
note: _Isector_37 omitted because of collinearity
note: _Isector_38 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Isector_45 omitted because of collinearity
note: _Isector_46 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_55 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_64 omitted because of collinearity
note: _Ieduc_66 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_73 omitted because of collinearity
note: _Ieduc_76 omitted because of collinearity
note: _Ieduc_77 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity
note: _Ieduc_84 omitted because of collinearity
note: _Ieduc_85 omitted because of collinearity
note: _Ieduc_86 omitted because of collinearity
note: _Ieduc_87 omitted because of collinearity
note: _Ieduc_99 omitted because of collinearity
note: _Inuts2_6 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =      3294
Group variable: id                              Number of groups   =      1723

R-sq:  within  = 0.1620                         Obs per group: min =         1
       between = 0.0316                                        avg =       1.9
       overall = 0.0352                                        max =         2

                                                F(34,1722)         =         .
corr(u_i, Xb)  = -0.7507                        Prob > F           =         .

                                  (Std. Err. adjusted for 1723 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .2652427   .0509737     5.20   0.000     .1652658    .3652196
        age2 |  -.0022118   .0005284    -4.19   0.000    -.0032482   -.0011754
      tenure |   .0082193   .0022584     3.64   0.000     .0037898    .0126488
      female |          0  (omitted)
      months |   .0691782   .0179264     3.86   0.000     .0340183    .1043381
         emp |   .0026615   .0006946     3.83   0.000     .0012991    .0040238
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |          0  (omitted)
_Ivuosi_1995 |          0  (omitted)
_Ivuosi_1996 |          0  (omitted)
_Ivuosi_1997 |          0  (omitted)
_Ivuosi_1998 |          0  (omitted)
_Ivuosi_1999 |          0  (omitted)
  _Isector_2 |          0  (omitted)
  _Isector_3 |          0  (omitted)
  _Isector_4 |   .0331182   .0167794     1.97   0.049      .000208    .0660284
  _Isector_5 |  -.5978972   .3845731    -1.55   0.120    -1.352177    .1563825
  _Isector_6 |          0  (omitted)
  _Isector_7 |          0  (omitted)
  _Isector_8 |          0  (omitted)
  _Isector_9 |          0  (omitted)
 _Isector_10 |  -.7401972   .2329907    -3.18   0.002    -1.197172   -.2832226
 _Isector_11 |          0  (omitted)
 _Isector_12 |  -.1995954   .0417136    -4.78   0.000    -.2814099   -.1177808
 _Isector_13 |  -.0366905   .2119587    -0.17   0.863    -.4524142    .3790332
 _Isector_14 |  -.1341651   .1636373    -0.82   0.412    -.4551138    .1867836
 _Isector_15 |          0  (omitted)
 _Isector_16 |  -.2265986   .1723149    -1.32   0.189    -.5645671    .1113699
 _Isector_17 |  -.1402327   .1746074    -0.80   0.422    -.4826977    .2022323
 _Isector_18 |  -.2180973   .1562653    -1.40   0.163     -.524587    .0883924
 _Isector_19 |  -.0526056   .2585959    -0.20   0.839    -.5598007    .4545895
 _Isector_20 |   .0402239   .1777379     0.23   0.821     -.308381    .3888289
 _Isector_21 |  -.0532847   .2509572    -0.21   0.832    -.5454977    .4389284
 _Isector_22 |  -.0055951     .17866    -0.03   0.975    -.3560085    .3448183
 _Isector_23 |  -.0880854   .2766747    -0.32   0.750    -.6307393    .4545685
 _Isector_24 |  -.6057299   .1644311    -3.68   0.000    -.9282357   -.2832241
 _Isector_25 |          0  (omitted)
 _Isector_26 |  -.0019292   .0190573    -0.10   0.919     -.039307    .0354486
 _Isector_27 |          0  (omitted)
 _Isector_28 |          0  (omitted)
 _Isector_29 |  -.1475271   .1534519    -0.96   0.336    -.4484989    .1534446
 _Isector_30 |  -.0924002   .2030675    -0.46   0.649    -.4906851    .3058847
 _Isector_31 |          0  (omitted)
 _Isector_32 |          0  (omitted)
 _Isector_33 |          0  (omitted)
 _Isector_34 |          0  (omitted)
 _Isector_35 |  -.0286324   .2621547    -0.11   0.913    -.5428076    .4855428
 _Isector_36 |          0  (omitted)
 _Isector_37 |          0  (omitted)
 _Isector_38 |          0  (omitted)
 _Isector_39 |  -.6268734   .1976152    -3.17   0.002    -1.014465   -.2392822
 _Isector_40 |  -.1911322      .1732    -1.10   0.270    -.5308367    .1485723
 _Isector_41 |  -.2594415   .1998846    -1.30   0.194    -.6514838    .1326007
 _Isector_42 |  -.2870649   .2026517    -1.42   0.157    -.6845343    .1104044
 _Isector_43 |          0  (omitted)
 _Isector_44 |   1.218288   .7693169     1.58   0.113    -.2906059    2.727182
 _Isector_45 |          0  (omitted)
 _Isector_46 |          0  (omitted)
   _Ieduc_32 |          0  (omitted)
   _Ieduc_33 |          0  (omitted)
   _Ieduc_35 |  -.2979111   .1924134    -1.55   0.122    -.6752996    .0794774
   _Ieduc_36 |          0  (omitted)
   _Ieduc_37 |          0  (omitted)
   _Ieduc_38 |          0  (omitted)
   _Ieduc_53 |          0  (omitted)
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |          0  (omitted)
   _Ieduc_56 |          0  (omitted)
   _Ieduc_57 |          0  (omitted)
   _Ieduc_63 |          0  (omitted)
   _Ieduc_64 |          0  (omitted)
   _Ieduc_65 |   .1168147   .1021779     1.14   0.253    -.0835912    .3172205
   _Ieduc_66 |          0  (omitted)
   _Ieduc_72 |          0  (omitted)
   _Ieduc_73 |          0  (omitted)
   _Ieduc_74 |   .1789919   .1044121     1.71   0.087    -.0257959    .3837798
   _Ieduc_75 |    .071408   .0185747     3.84   0.000     .0349766    .1078395
   _Ieduc_76 |          0  (omitted)
   _Ieduc_77 |          0  (omitted)
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |          0  (omitted)
   _Ieduc_85 |          0  (omitted)
   _Ieduc_86 |          0  (omitted)
   _Ieduc_87 |          0  (omitted)
   _Ieduc_99 |          0  (omitted)
   _Inuts2_2 |  -.3469059   .2328707    -1.49   0.136     -.803645    .1098332
   _Inuts2_3 |    -.34431   .2544469    -1.35   0.176    -.8433674    .1547475
   _Inuts2_4 |  -.3161786   .2370689    -1.33   0.182     -.781152    .1487948
   _Inuts2_5 |  -.1783918   .1569865    -1.14   0.256    -.4862961    .1295126
   _Inuts2_6 |          0  (omitted)
        pats |   .0143363   .0125391     1.14   0.253    -.0102572    .0389298
     lagpats |   .0082272   .0249168     0.33   0.741    -.0406431    .0570976
     lagpat2 |   .0107738   .0188109     0.57   0.567    -.0261208    .0476684
     lagpat3 |   .0116143   .0231382     0.50   0.616    -.0337676    .0569963
     lagpat4 |   .0591972     .03034     1.95   0.051    -.0003098    .1187043
     lagpat5 |   .0419361   .0207718     2.02   0.044     .0011955    .0826767
     lagpat6 |   .0512137     .01984     2.58   0.010     .0123006    .0901268
       _cons |   2.711575   1.199639     2.26   0.024      .358671    5.064479
-------------+----------------------------------------------------------------
     sigma_u |   .6789856
     sigma_e |  .21833539
         rho |  .90628836   (fraction of variance due to u_i)
------------------------------------------------------------------------------

. xi: xtreg logwage $expl_17 if vuosi!=1999, fe robust  ;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: female omitted because of collinearity
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Ivuosi_1996 omitted because of collinearity
note: _Ivuosi_1997 omitted because of collinearity
note: _Ivuosi_1998 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_2 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_7 omitted because of collinearity
note: _Isector_8 omitted because of collinearity
note: _Isector_9 omitted because of collinearity
note: _Isector_11 omitted because of collinearity
note: _Isector_15 omitted because of collinearity
note: _Isector_23 omitted because of collinearity
note: _Isector_27 omitted because of collinearity
note: _Isector_28 omitted because of collinearity
note: _Isector_31 omitted because of collinearity
note: _Isector_32 omitted because of collinearity
note: _Isector_33 omitted because of collinearity
note: _Isector_34 omitted because of collinearity
note: _Isector_36 omitted because of collinearity
note: _Isector_37 omitted because of collinearity
note: _Isector_38 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Isector_45 omitted because of collinearity
note: _Isector_46 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_55 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_64 omitted because of collinearity
note: _Ieduc_66 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_73 omitted because of collinearity
note: _Ieduc_76 omitted because of collinearity
note: _Ieduc_77 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity
note: _Ieduc_84 omitted because of collinearity
note: _Ieduc_85 omitted because of collinearity
note: _Ieduc_86 omitted because of collinearity
note: _Ieduc_87 omitted because of collinearity
note: _Ieduc_99 omitted because of collinearity
note: _Inuts2_6 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =      3294
Group variable: id                              Number of groups   =      1723

R-sq:  within  = 0.1636                         Obs per group: min =         1
       between = 0.0372                                        avg =       1.9
       overall = 0.0414                                        max =         2

                                                F(34,1722)         =         .
corr(u_i, Xb)  = -0.7384                        Prob > F           =         .

                                  (Std. Err. adjusted for 1723 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .2581578   .0475614     5.43   0.000     .1648736    .3514421
        age2 |  -.0021307    .000492    -4.33   0.000    -.0030957   -.0011658
      tenure |   .0074295   .0022155     3.35   0.001     .0030842    .0117748
      female |          0  (omitted)
      months |   .0695577   .0176862     3.93   0.000      .034869    .1042465
         emp |   .0026237   .0006674     3.93   0.000     .0013148    .0039327
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |          0  (omitted)
_Ivuosi_1995 |          0  (omitted)
_Ivuosi_1996 |          0  (omitted)
_Ivuosi_1997 |          0  (omitted)
_Ivuosi_1998 |          0  (omitted)
_Ivuosi_1999 |          0  (omitted)
  _Isector_2 |          0  (omitted)
  _Isector_3 |          0  (omitted)
  _Isector_4 |    .036008   .0144899     2.49   0.013     .0075884    .0644276
  _Isector_5 |  -.4881026   .4029139    -1.21   0.226    -1.278355    .3021496
  _Isector_6 |          0  (omitted)
  _Isector_7 |          0  (omitted)
  _Isector_8 |          0  (omitted)
  _Isector_9 |          0  (omitted)
 _Isector_10 |  -.6232219   .2551407    -2.44   0.015     -1.12364   -.1228035
 _Isector_11 |          0  (omitted)
 _Isector_12 |  -.0889973   .2767768    -0.32   0.748    -.6318514    .4538568
 _Isector_13 |   .0657308   .1751162     0.38   0.707    -.2777321    .4091937
 _Isector_14 |  -.0344758   .2700692    -0.13   0.898     -.564174    .4952224
 _Isector_15 |          0  (omitted)
 _Isector_16 |  -.1137805     .24346    -0.47   0.640    -.5912889    .3637279
 _Isector_17 |  -.0338345   .2018859    -0.17   0.867    -.4298019    .3621329
 _Isector_18 |  -.1038207   .2211639    -0.47   0.639    -.5375989    .3299574
 _Isector_19 |   .0950129    .335146     0.28   0.777    -.5623232     .752349
 _Isector_20 |   .1744516   .2571925     0.68   0.498     -.329991    .6788942
 _Isector_21 |   .0695259   .3226749     0.22   0.829    -.5633501    .7024019
 _Isector_22 |    .111504    .227853     0.49   0.625    -.3353938    .5584018
 _Isector_23 |          0  (omitted)
 _Isector_24 |  -.4830357    .223982    -2.16   0.031    -.9223411   -.0437302
 _Isector_25 |   .0824915    .276439     0.30   0.765    -.4597001     .624683
 _Isector_26 |   -.010728   .0154417    -0.69   0.487    -.0410144    .0195585
 _Isector_27 |          0  (omitted)
 _Isector_28 |          0  (omitted)
 _Isector_29 |  -.0379403   .2648901    -0.14   0.886    -.5574805    .4815999
 _Isector_30 |   .0235644   .2370756     0.10   0.921     -.441422    .4885509
 _Isector_31 |          0  (omitted)
 _Isector_32 |          0  (omitted)
 _Isector_33 |          0  (omitted)
 _Isector_34 |          0  (omitted)
 _Isector_35 |   .0899823   .3352348     0.27   0.788     -.567528    .7474927
 _Isector_36 |          0  (omitted)
 _Isector_37 |          0  (omitted)
 _Isector_38 |          0  (omitted)
 _Isector_39 |  -.4667523   .2101883    -2.22   0.027    -.8790036    -.054501
 _Isector_40 |  -.0794032   .2561492    -0.31   0.757    -.5817996    .4229932
 _Isector_41 |  -.1307669   .2137559    -0.61   0.541    -.5500154    .2884816
 _Isector_42 |  -.1723017   .2363487    -0.73   0.466    -.6358625    .2912592
 _Isector_43 |          0  (omitted)
 _Isector_44 |   1.312123   .7652198     1.71   0.087    -.1887352    2.812981
 _Isector_45 |          0  (omitted)
 _Isector_46 |          0  (omitted)
   _Ieduc_32 |          0  (omitted)
   _Ieduc_33 |          0  (omitted)
   _Ieduc_35 |  -.3094354   .1980612    -1.56   0.118    -.6979012    .0790304
   _Ieduc_36 |          0  (omitted)
   _Ieduc_37 |          0  (omitted)
   _Ieduc_38 |          0  (omitted)
   _Ieduc_53 |          0  (omitted)
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |          0  (omitted)
   _Ieduc_56 |          0  (omitted)
   _Ieduc_57 |          0  (omitted)
   _Ieduc_63 |          0  (omitted)
   _Ieduc_64 |          0  (omitted)
   _Ieduc_65 |   .1403403   .1111838     1.26   0.207    -.0777291    .3584098
   _Ieduc_66 |          0  (omitted)
   _Ieduc_72 |          0  (omitted)
   _Ieduc_73 |          0  (omitted)
   _Ieduc_74 |   .2013658   .1141691     1.76   0.078    -.0225589    .4252905
   _Ieduc_75 |   .0805445   .0117406     6.86   0.000     .0575171    .1035718
   _Ieduc_76 |          0  (omitted)
   _Ieduc_77 |          0  (omitted)
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |          0  (omitted)
   _Ieduc_85 |          0  (omitted)
   _Ieduc_86 |          0  (omitted)
   _Ieduc_87 |          0  (omitted)
   _Ieduc_99 |          0  (omitted)
   _Inuts2_2 |  -.3347759    .229485    -1.46   0.145    -.7848745    .1153227
   _Inuts2_3 |  -.3542033   .2485932    -1.42   0.154    -.8417798    .1333731
   _Inuts2_4 |  -.2884895   .2387385    -1.21   0.227    -.7567375    .1797586
   _Inuts2_5 |  -.1355642   .1567291    -0.86   0.387    -.4429636    .1718352
   _Inuts2_6 |          0  (omitted)
        pats |   .0165699   .0103891     1.59   0.111    -.0038067    .0369464
     lagcits |   .0011643   .0015075     0.77   0.440    -.0017923     .004121
     lagcit2 |   .0029915   .0015522     1.93   0.054    -.0000528    .0060359
     lagcit3 |   .0027515    .001819     1.51   0.131    -.0008162    .0063192
     lagcit4 |   .0023557   .0026713     0.88   0.378    -.0028835     .007595
     lagcit5 |   .0033034   .0024319     1.36   0.175    -.0014663    .0080731
     lagcit6 |   .0043726    .002289     1.91   0.056     -.000117    .0088621
       _cons |   2.735213   1.124612     2.43   0.015     .5294635    4.940963
-------------+----------------------------------------------------------------
     sigma_u |  .66339205
     sigma_e |   .2181248
         rho |  .90243673   (fraction of variance due to u_i)
------------------------------------------------------------------------------

. xi: xtreg logwage $expl_0 $expl_cg if vuosi!=1999,  fe robust  ;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: female omitted because of collinearity
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Ivuosi_1996 omitted because of collinearity
note: _Ivuosi_1997 omitted because of collinearity
note: _Ivuosi_1998 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_2 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_7 omitted because of collinearity
note: _Isector_8 omitted because of collinearity
note: _Isector_9 omitted because of collinearity
note: _Isector_11 omitted because of collinearity
note: _Isector_15 omitted because of collinearity
note: _Isector_23 omitted because of collinearity
note: _Isector_27 omitted because of collinearity
note: _Isector_28 omitted because of collinearity
note: _Isector_31 omitted because of collinearity
note: _Isector_32 omitted because of collinearity
note: _Isector_33 omitted because of collinearity
note: _Isector_34 omitted because of collinearity
note: _Isector_36 omitted because of collinearity
note: _Isector_37 omitted because of collinearity
note: _Isector_38 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Isector_45 omitted because of collinearity
note: _Isector_46 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_64 omitted because of collinearity
note: _Ieduc_66 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_73 omitted because of collinearity
note: _Ieduc_74 omitted because of collinearity
note: _Ieduc_76 omitted because of collinearity
note: _Ieduc_77 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity
note: _Ieduc_84 omitted because of collinearity
note: _Ieduc_85 omitted because of collinearity
note: _Ieduc_86 omitted because of collinearity
note: _Ieduc_87 omitted because of collinearity
note: _Ieduc_99 omitted because of collinearity
note: _Inuts2_6 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =      3294
Group variable: id                              Number of groups   =      1723

R-sq:  within  = 0.1844                         Obs per group: min =         1
       between = 0.0450                                        avg =       1.9
       overall = 0.0506                                        max =         2

                                                F(62,1722)         =         .
corr(u_i, Xb)  = -0.7391                        Prob > F           =         .

                                  (Std. Err. adjusted for 1723 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .2592826   .0510903     5.07   0.000      .159077    .3594882
        age2 |  -.0021131   .0005329    -3.96   0.000    -.0031583   -.0010678
      tenure |   .0081624   .0027343     2.99   0.003     .0027995    .0135252
      female |          0  (omitted)
      months |   .0686427   .0176129     3.90   0.000     .0340977    .1031877
         emp |   .0026279   .0006874     3.82   0.000     .0012797     .003976
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |          0  (omitted)
_Ivuosi_1995 |          0  (omitted)
_Ivuosi_1996 |          0  (omitted)
_Ivuosi_1997 |          0  (omitted)
_Ivuosi_1998 |          0  (omitted)
_Ivuosi_1999 |          0  (omitted)
  _Isector_2 |          0  (omitted)
  _Isector_3 |          0  (omitted)
  _Isector_4 |   .0538351   .0276758     1.95   0.052    -.0004467    .1081169
  _Isector_5 |  -.5326027    .411759    -1.29   0.196    -1.340203    .2749978
  _Isector_6 |          0  (omitted)
  _Isector_7 |          0  (omitted)
  _Isector_8 |          0  (omitted)
  _Isector_9 |          0  (omitted)
 _Isector_10 |  -.6996929   .2665885    -2.62   0.009    -1.222564   -.1768214
 _Isector_11 |          0  (omitted)
 _Isector_12 |  -.1217736   .2836225    -0.43   0.668    -.6780545    .4345073
 _Isector_13 |   .0242159   .1888568     0.13   0.898     -.346197    .3946288
 _Isector_14 |  -.0910804   .2771826    -0.33   0.743    -.6347305    .4525696
 _Isector_15 |          0  (omitted)
 _Isector_16 |  -.1504781   .2488703    -0.60   0.545     -.638598    .3376418
 _Isector_17 |  -.0907911   .2139592    -0.42   0.671    -.5104384    .3288562
 _Isector_18 |  -.1621011   .2317422    -0.70   0.484    -.6166269    .2924248
 _Isector_19 |   .0340264   .3373645     0.10   0.920    -.6276611    .6957138
 _Isector_20 |   .1574519   .2545718     0.62   0.536    -.3418506    .6567544
 _Isector_21 |   .0224729   .3267721     0.07   0.945    -.6184392    .6633849
 _Isector_22 |   .0606874   .2395812     0.25   0.800    -.4092135    .5305882
 _Isector_23 |          0  (omitted)
 _Isector_24 |   -.544617   .2338909    -2.33   0.020    -1.003357   -.0858769
 _Isector_25 |   .0124833   .2838292     0.04   0.965    -.5442031    .5691696
 _Isector_26 |   -.006442   .0202669    -0.32   0.751    -.0461922    .0333083
 _Isector_27 |          0  (omitted)
 _Isector_28 |          0  (omitted)
 _Isector_29 |  -.0819004   .2708719    -0.30   0.762     -.613173    .4493723
 _Isector_30 |  -.0380997   .2467061    -0.15   0.877    -.5219748    .4457755
 _Isector_31 |          0  (omitted)
 _Isector_32 |          0  (omitted)
 _Isector_33 |          0  (omitted)
 _Isector_34 |          0  (omitted)
 _Isector_35 |   .0486465   .3413807     0.14   0.887     -.620918    .7182109
 _Isector_36 |          0  (omitted)
 _Isector_37 |          0  (omitted)
 _Isector_38 |          0  (omitted)
 _Isector_39 |  -.3588127   .2338224    -1.53   0.125    -.8174186    .0997932
 _Isector_40 |  -.1269101   .2777702    -0.46   0.648    -.6717126    .4178925
 _Isector_41 |  -.1678332   .2218543    -0.76   0.449    -.6029654     .267299
 _Isector_42 |  -.2374586   .2465188    -0.96   0.336    -.7209665    .2460493
 _Isector_43 |          0  (omitted)
 _Isector_44 |   1.241997   .7799123     1.59   0.111    -.2876782    2.771672
 _Isector_45 |          0  (omitted)
 _Isector_46 |          0  (omitted)
   _Ieduc_32 |          0  (omitted)
   _Ieduc_33 |          0  (omitted)
   _Ieduc_35 |  -.2784137   .1910364    -1.46   0.145    -.6531014    .0962741
   _Ieduc_36 |          0  (omitted)
   _Ieduc_37 |          0  (omitted)
   _Ieduc_38 |          0  (omitted)
   _Ieduc_53 |          0  (omitted)
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |   -.230821   .1227389    -1.88   0.060    -.4715539     .009912
   _Ieduc_56 |          0  (omitted)
   _Ieduc_57 |          0  (omitted)
   _Ieduc_63 |          0  (omitted)
   _Ieduc_64 |          0  (omitted)
   _Ieduc_65 |  -.0832126   .0287116    -2.90   0.004    -.1395259   -.0268994
   _Ieduc_66 |          0  (omitted)
   _Ieduc_72 |          0  (omitted)
   _Ieduc_73 |          0  (omitted)
   _Ieduc_74 |          0  (omitted)
   _Ieduc_75 |   .0925431   .0317157     2.92   0.004     .0303378    .1547484
   _Ieduc_76 |          0  (omitted)
   _Ieduc_77 |          0  (omitted)
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |          0  (omitted)
   _Ieduc_85 |          0  (omitted)
   _Ieduc_86 |          0  (omitted)
   _Ieduc_87 |          0  (omitted)
   _Ieduc_99 |          0  (omitted)
   _Inuts2_2 |  -.3015416   .2267682    -1.33   0.184    -.7463116    .1432285
   _Inuts2_3 |  -.2620747    .258585    -1.01   0.311    -.7692485    .2450992
   _Inuts2_4 |  -.2208785   .2502307    -0.88   0.378    -.7116666    .2699096
   _Inuts2_5 |  -.0995481   .1554462    -0.64   0.522    -.4044314    .2053352
   _Inuts2_6 |          0  (omitted)
      nocits |    .033781    .038405     0.88   0.379    -.0415443    .1091064
      cits10 |   -.008882   .0270506    -0.33   0.743    -.0619375    .0441734
      cits20 |   .0306853   .0262662     1.17   0.243    -.0208318    .0822023
      cits30 |  -.0212385   .0408636    -0.52   0.603     -.101386    .0589091
     topcits |   .1017089   .0926269     1.10   0.272    -.0799641     .283382
      lagnoc |   .0095308   .0414232     0.23   0.818    -.0717143     .090776
      lag10c |  -.0211911   .0356101    -0.60   0.552    -.0910348    .0486525
      lag20c |  -.0466014   .0496547    -0.94   0.348    -.1439912    .0507884
      lag30c |   .0533543   .1366484     0.39   0.696    -.2146601    .3213686
     lagtopc |   .1465317   .1040338     1.41   0.159    -.0575141    .3505776
     lagnoc2 |  -.0629218    .052639    -1.20   0.232    -.1661649    .0403214
     lag10c2 |  -.0002776   .0332869    -0.01   0.993    -.0655646    .0650093
     lag20c2 |  -.0729399   .0537651    -1.36   0.175    -.1783918    .0325119
     lag30c2 |  -.0302997   .1404154    -0.22   0.829    -.3057024     .245103
    lagtopc2 |    .197026   .1108613     1.78   0.076    -.0204109    .4144629
     lagnoc3 |   -.089704   .0487965    -1.84   0.066    -.1854107    .0060027
     lag10c3 |  -.0152192   .0317744    -0.48   0.632    -.0775397    .0471013
     lag20c3 |  -.0027844   .0608491    -0.05   0.964    -.1221303    .1165616
     lag30c3 |   .0210801    .150899     0.14   0.889    -.2748845    .3170447
     lagtop3 |   .1475611   .0899796     1.64   0.101    -.0289197     .324042
     lagnoc4 |  -.1173123    .044575    -2.63   0.009    -.2047391   -.0298854
     lag10c4 |  -.0136136   .0372215    -0.37   0.715    -.0866178    .0593905
     lag20c4 |   .0546511   .0704712     0.78   0.438    -.0835671    .1928692
     lag30c4 |   .2599411   .1275707     2.04   0.042     .0097313    .5101508
    lagtopc4 |   .1018831   .1540823     0.66   0.509    -.2003251    .4040913
     lagnoc5 |  -.1115271   .0441526    -2.53   0.012    -.1981255   -.0249287
     lag10c5 |    .029803   .0292263     1.02   0.308    -.0275198    .0871259
     lag20c5 |   .0027275   .0584252     0.05   0.963    -.1118643    .1173193
     lag30c5 |    .208365    .134182     1.55   0.121    -.0548119    .4715418
    lagtopc5 |    .087438   .1601715     0.55   0.585    -.2267131    .4015891
     lagnoc6 |  -.0862864   .0330385    -2.61   0.009    -.1510863   -.0214865
     lag10c6 |    .019328   .0283701     0.68   0.496    -.0363155    .0749716
     lag20c6 |   .0257708   .0313449     0.82   0.411    -.0357073    .0872489
     lag30c6 |   .2170128   .1262562     1.72   0.086    -.0306188    .4646445
    lagtopc6 |   .1360188   .1868361     0.73   0.467    -.2304309    .5024684
       _cons |   2.775177     1.2205     2.27   0.023     .3813585    5.168996
-------------+----------------------------------------------------------------
     sigma_u |  .66157223
     sigma_e |  .21739795
         rho |  .90254073   (fraction of variance due to u_i)
------------------------------------------------------------------------------

. *-----------------------------------------------------;
. *removing employees at 3 big patenting firms;
.  /* SECTION 5.5. ROBUSTNESS TEST #3 */
> *-----------------------------------------------------;
. xi: xtreg logwage $expl_7 if big_pat!=1, fe robust  ;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: female omitted because of collinearity
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Ivuosi_1996 omitted because of collinearity
note: _Ivuosi_1997 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_2 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_7 omitted because of collinearity
note: _Isector_8 omitted because of collinearity
note: _Isector_11 omitted because of collinearity
note: _Isector_15 omitted because of collinearity
note: _Isector_23 omitted because of collinearity
note: _Isector_28 omitted because of collinearity
note: _Isector_32 omitted because of collinearity
note: _Isector_33 omitted because of collinearity
note: _Isector_34 omitted because of collinearity
note: _Isector_36 omitted because of collinearity
note: _Isector_37 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Isector_45 omitted because of collinearity
note: _Isector_46 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_64 omitted because of collinearity
note: _Ieduc_66 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_73 omitted because of collinearity
note: _Ieduc_76 omitted because of collinearity
note: _Ieduc_77 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity
note: _Ieduc_84 omitted because of collinearity
note: _Ieduc_85 omitted because of collinearity
note: _Ieduc_86 omitted because of collinearity
note: _Ieduc_87 omitted because of collinearity
note: _Inuts2_6 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =      3822
Group variable: id                              Number of groups   =      1521

R-sq:  within  = 0.0975                         Obs per group: min =         1
       between = 0.0094                                        avg =       2.5
       overall = 0.0107                                        max =         3

                                                F(43,1520)         =         .
corr(u_i, Xb)  = -0.5756                        Prob > F           =         .

                                  (Std. Err. adjusted for 1521 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .1556923   .0390172     3.99   0.000     .0791589    .2322256
        age2 |  -.0014004   .0004038    -3.47   0.001    -.0021924   -.0006083
      tenure |   .0066951   .0022233     3.01   0.003      .002334    .0110562
      female |          0  (omitted)
      months |   .0033465    .004501     0.74   0.457    -.0054823    .0121753
         emp |    .001133   .0007633     1.48   0.138    -.0003643    .0026302
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |          0  (omitted)
_Ivuosi_1995 |          0  (omitted)
_Ivuosi_1996 |          0  (omitted)
_Ivuosi_1997 |          0  (omitted)
_Ivuosi_1998 |   .0128468   .0077804     1.65   0.099    -.0024147    .0281083
_Ivuosi_1999 |          0  (omitted)
  _Isector_2 |          0  (omitted)
  _Isector_3 |          0  (omitted)
  _Isector_4 |   .0224395   .0194363     1.15   0.248    -.0156853    .0605642
  _Isector_5 |  -.1786892   .1866171    -0.96   0.338    -.5447436    .1873652
  _Isector_6 |          0  (omitted)
  _Isector_7 |          0  (omitted)
  _Isector_8 |          0  (omitted)
  _Isector_9 |   .2296277    .178101     1.29   0.197    -.1197219    .5789774
 _Isector_10 |   -.174239   .1489283    -1.17   0.242    -.4663657    .1178877
 _Isector_11 |          0  (omitted)
 _Isector_12 |   .0432864   .1049729     0.41   0.680    -.1626207    .2491935
 _Isector_13 |   .1396458   .0847381     1.65   0.100    -.0265702    .3058618
 _Isector_14 |  -.0318349   .1344639    -0.24   0.813    -.2955894    .2319195
 _Isector_15 |          0  (omitted)
 _Isector_16 |  -.0406235   .1154019    -0.35   0.725    -.2669873    .1857404
 _Isector_17 |   .0579479   .2013548     0.29   0.774    -.3370148    .4529105
 _Isector_18 |  -.0175373   .1100462    -0.16   0.873    -.2333956    .1983211
 _Isector_19 |   .0445829   .2201357     0.20   0.840     -.387219    .4763848
 _Isector_20 |   .0820874   .1139709     0.72   0.471    -.1414695    .3056442
 _Isector_21 |  -.2033988   .2488565    -0.82   0.414    -.6915372    .2847397
 _Isector_22 |   .0457906   .1041466     0.44   0.660    -.1584956    .2500769
 _Isector_23 |          0  (omitted)
 _Isector_24 |  -.1196454   .1297276    -0.92   0.357    -.3741094    .1348187
 _Isector_25 |   .1108796   .0898765     1.23   0.218    -.0654154    .2871746
 _Isector_26 |   .1073461   .1059018     1.01   0.311    -.1003829    .3150752
 _Isector_27 |   .1012025   .1341339     0.75   0.451    -.1619045    .3643096
 _Isector_28 |          0  (omitted)
 _Isector_29 |  -.0476838   .1058499    -0.45   0.652    -.2553111    .1599434
 _Isector_30 |   .2281541   .1119748     2.04   0.042     .0085126    .4477956
 _Isector_31 |   .4605859   .1140132     4.04   0.000     .2369462    .6842257
 _Isector_32 |          0  (omitted)
 _Isector_33 |          0  (omitted)
 _Isector_34 |          0  (omitted)
 _Isector_35 |  -.2322627   .1394156    -1.67   0.096      -.50573    .0412046
 _Isector_36 |          0  (omitted)
 _Isector_37 |          0  (omitted)
 _Isector_38 |    .233672   .1229886     1.90   0.058    -.0075734    .4749175
 _Isector_39 |   .1240666   .1190462     1.04   0.297    -.1094456    .3575788
 _Isector_40 |  -.2229687   .1906301    -1.17   0.242    -.5968946    .1509573
 _Isector_41 |   .0745725   .0951715     0.78   0.433    -.1121089    .2612539
 _Isector_42 |   .0853206   .1081941     0.79   0.430     -.126905    .2975461
 _Isector_43 |          0  (omitted)
 _Isector_44 |   2.158516   .8702931     2.48   0.013     .4514137    3.865619
 _Isector_45 |          0  (omitted)
 _Isector_46 |          0  (omitted)
   _Ieduc_32 |          0  (omitted)
   _Ieduc_33 |          0  (omitted)
   _Ieduc_35 |   .0643623    .062295     1.03   0.302    -.0578309    .1865554
   _Ieduc_36 |          0  (omitted)
   _Ieduc_37 |          0  (omitted)
   _Ieduc_38 |          0  (omitted)
   _Ieduc_53 |          0  (omitted)
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |  -.5314886   .2411701    -2.20   0.028     -1.00455   -.0584271
   _Ieduc_56 |          0  (omitted)
   _Ieduc_57 |          0  (omitted)
   _Ieduc_63 |          0  (omitted)
   _Ieduc_64 |          0  (omitted)
   _Ieduc_65 |  -.2815554   .1164206    -2.42   0.016    -.5099175   -.0531933
   _Ieduc_66 |          0  (omitted)
   _Ieduc_72 |          0  (omitted)
   _Ieduc_73 |          0  (omitted)
   _Ieduc_74 |  -.0425155   .0481268    -0.88   0.377    -.1369175    .0518866
   _Ieduc_75 |  -.1398584   .0926945    -1.51   0.132    -.3216811    .0419643
   _Ieduc_76 |          0  (omitted)
   _Ieduc_77 |          0  (omitted)
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |          0  (omitted)
   _Ieduc_85 |          0  (omitted)
   _Ieduc_86 |          0  (omitted)
   _Ieduc_87 |          0  (omitted)
   _Ieduc_99 |   .2991154   .1227083     2.44   0.015       .05842    .5398109
   _Inuts2_2 |  -.1045549   .0962672    -1.09   0.278    -.2933856    .0842758
   _Inuts2_3 |  -.1681776   .1033265    -1.63   0.104    -.3708552       .0345
   _Inuts2_4 |  -.1022451   .0979658    -1.04   0.297    -.2944074    .0899173
   _Inuts2_5 |  -.0266915    .065722    -0.41   0.685     -.155607    .1022239
   _Inuts2_6 |          0  (omitted)
        pats |    .039194   .0139067     2.82   0.005     .0119156    .0664724
     lagpats |   .0156043   .0262309     0.59   0.552    -.0358482    .0670569
     lagpat2 |   .0107424   .0188741     0.57   0.569    -.0262796    .0477645
     lagpat3 |   .0207638   .0197702     1.05   0.294     -.018016    .0595435
     lagpat4 |   .0455745    .018951     2.40   0.016     .0084016    .0827474
     lagpat5 |   .0504527   .0150706     3.35   0.001     .0208913    .0800141
     lagpat6 |   .0576216   .0182991     3.15   0.002     .0217275    .0935157
       _cons |   6.550659   .9125821     7.18   0.000     4.760606    8.340712
-------------+----------------------------------------------------------------
     sigma_u |  .59619705
     sigma_e |  .25436059
         rho |  .84600911   (fraction of variance due to u_i)
------------------------------------------------------------------------------

. xi: xtreg logwage $expl_17 if big_pat!=1, fe robust  ;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: female omitted because of collinearity
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Ivuosi_1996 omitted because of collinearity
note: _Ivuosi_1997 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_2 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_7 omitted because of collinearity
note: _Isector_8 omitted because of collinearity
note: _Isector_11 omitted because of collinearity
note: _Isector_15 omitted because of collinearity
note: _Isector_23 omitted because of collinearity
note: _Isector_28 omitted because of collinearity
note: _Isector_32 omitted because of collinearity
note: _Isector_33 omitted because of collinearity
note: _Isector_34 omitted because of collinearity
note: _Isector_36 omitted because of collinearity
note: _Isector_37 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Isector_45 omitted because of collinearity
note: _Isector_46 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_64 omitted because of collinearity
note: _Ieduc_66 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_73 omitted because of collinearity
note: _Ieduc_76 omitted because of collinearity
note: _Ieduc_77 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity
note: _Ieduc_84 omitted because of collinearity
note: _Ieduc_85 omitted because of collinearity
note: _Ieduc_86 omitted because of collinearity
note: _Ieduc_87 omitted because of collinearity
note: _Inuts2_6 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =      3822
Group variable: id                              Number of groups   =      1521

R-sq:  within  = 0.1081                         Obs per group: min =         1
       between = 0.0113                                        avg =       2.5
       overall = 0.0122                                        max =         3

                                                F(43,1520)         =         .
corr(u_i, Xb)  = -0.5849                        Prob > F           =         .

                                  (Std. Err. adjusted for 1521 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .1508395   .0391152     3.86   0.000     .0741139    .2275651
        age2 |  -.0013151   .0004041    -3.25   0.001    -.0021077   -.0005225
      tenure |   .0065707   .0021699     3.03   0.003     .0023144    .0108269
      female |          0  (omitted)
      months |   .0034752   .0045016     0.77   0.440    -.0053548    .0123051
         emp |   .0011322   .0007482     1.51   0.130    -.0003354    .0025999
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |          0  (omitted)
_Ivuosi_1995 |          0  (omitted)
_Ivuosi_1996 |          0  (omitted)
_Ivuosi_1997 |          0  (omitted)
_Ivuosi_1998 |   .0116503   .0074973     1.55   0.120    -.0030559    .0263565
_Ivuosi_1999 |          0  (omitted)
  _Isector_2 |          0  (omitted)
  _Isector_3 |          0  (omitted)
  _Isector_4 |    .022835   .0155586     1.47   0.142    -.0076835    .0533535
  _Isector_5 |  -.1606936   .1831222    -0.88   0.380    -.5198925    .1985053
  _Isector_6 |          0  (omitted)
  _Isector_7 |          0  (omitted)
  _Isector_8 |          0  (omitted)
  _Isector_9 |   .2483187   .1728589     1.44   0.151    -.0907486     .587386
 _Isector_10 |   -.139611   .1407754    -0.99   0.321    -.4157456    .1365237
 _Isector_11 |          0  (omitted)
 _Isector_12 |   .0608021   .0981424     0.62   0.536    -.1317069     .253311
 _Isector_13 |   .1514884   .0720181     2.10   0.036      .010223    .2927537
 _Isector_14 |  -.0126808   .1246601    -0.10   0.919    -.2572048    .2318433
 _Isector_15 |          0  (omitted)
 _Isector_16 |  -.0152019   .1068768    -0.14   0.887    -.2248436    .1944397
 _Isector_17 |    .078976   .1950107     0.40   0.686    -.3035426    .4614946
 _Isector_18 |   .0090601   .0992298     0.09   0.927    -.1855817     .203702
 _Isector_19 |    .063811   .2170768     0.29   0.769    -.3619907    .4896128
 _Isector_20 |   .0942701   .1095468     0.86   0.390    -.1206087    .3091489
 _Isector_21 |  -.1824755   .2493857    -0.73   0.464    -.6716521     .306701
 _Isector_22 |   .0574677    .097287     0.59   0.555    -.1333633    .2482988
 _Isector_23 |          0  (omitted)
 _Isector_24 |   -.101287    .122902    -0.82   0.410    -.3423626    .1397885
 _Isector_25 |   .1257049   .0783328     1.60   0.109    -.0279469    .2793566
 _Isector_26 |   .1210876    .095041     1.27   0.203    -.0653378    .3075129
 _Isector_27 |   .1133838   .1240609     0.91   0.361    -.1299648    .3567325
 _Isector_28 |          0  (omitted)
 _Isector_29 |  -.0378518   .0974962    -0.39   0.698     -.229093    .1533894
 _Isector_30 |   .2529861   .1026856     2.46   0.014     .0515656    .4544066
 _Isector_31 |   .4308434   .1115274     3.86   0.000     .2120795    .6496074
 _Isector_32 |          0  (omitted)
 _Isector_33 |          0  (omitted)
 _Isector_34 |          0  (omitted)
 _Isector_35 |  -.2102792    .134859    -1.56   0.119    -.4748086    .0542502
 _Isector_36 |          0  (omitted)
 _Isector_37 |          0  (omitted)
 _Isector_38 |   .2468172   .1161107     2.13   0.034      .019063    .4745714
 _Isector_39 |   .1823539   .0950417     1.92   0.055    -.0040729    .3687807
 _Isector_40 |   -.191341   .1955596    -0.98   0.328    -.5749362    .1922542
 _Isector_41 |   .0820679   .0817499     1.00   0.316    -.0782866    .2424224
 _Isector_42 |   .1082664   .0963537     1.12   0.261    -.0807338    .2972666
 _Isector_43 |          0  (omitted)
 _Isector_44 |   2.111773   .8128798     2.60   0.009     .5172886    3.706258
 _Isector_45 |          0  (omitted)
 _Isector_46 |          0  (omitted)
   _Ieduc_32 |          0  (omitted)
   _Ieduc_33 |          0  (omitted)
   _Ieduc_35 |   .0699032   .0604676     1.16   0.248    -.0487056     .188512
   _Ieduc_36 |          0  (omitted)
   _Ieduc_37 |          0  (omitted)
   _Ieduc_38 |          0  (omitted)
   _Ieduc_53 |          0  (omitted)
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |  -.5596042   .2375457    -2.36   0.019    -1.025556   -.0936522
   _Ieduc_56 |          0  (omitted)
   _Ieduc_57 |          0  (omitted)
   _Ieduc_63 |          0  (omitted)
   _Ieduc_64 |          0  (omitted)
   _Ieduc_65 |   -.298507   .1193894    -2.50   0.013    -.5326923   -.0643216
   _Ieduc_66 |          0  (omitted)
   _Ieduc_72 |          0  (omitted)
   _Ieduc_73 |          0  (omitted)
   _Ieduc_74 |   -.035259   .0504513    -0.70   0.485    -.1342206    .0637026
   _Ieduc_75 |  -.1506436   .0969529    -1.55   0.120    -.3408192     .039532
   _Ieduc_76 |          0  (omitted)
   _Ieduc_77 |          0  (omitted)
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |          0  (omitted)
   _Ieduc_85 |          0  (omitted)
   _Ieduc_86 |          0  (omitted)
   _Ieduc_87 |          0  (omitted)
   _Ieduc_99 |   .2909683   .1180106     2.47   0.014     .0594875    .5224492
   _Inuts2_2 |  -.0997071   .0968493    -1.03   0.303    -.2896796    .0902654
   _Inuts2_3 |  -.2003198   .0973846    -2.06   0.040    -.3913422   -.0092974
   _Inuts2_4 |  -.1114678   .0956937    -1.16   0.244    -.2991736     .076238
   _Inuts2_5 |  -.0301781    .065107    -0.46   0.643    -.1578871    .0975309
   _Inuts2_6 |          0  (omitted)
        pats |   .0328996   .0118652     2.77   0.006     .0096257    .0561735
     lagcits |   .0011404   .0017731     0.64   0.520    -.0023375    .0046183
     lagcit2 |  -.0003101   .0017711    -0.18   0.861    -.0037841    .0031639
     lagcit3 |   .0017341   .0017807     0.97   0.330    -.0017589    .0052271
     lagcit4 |   .0049562   .0016165     3.07   0.002     .0017854     .008127
     lagcit5 |   .0042783   .0011734     3.65   0.000     .0019767    .0065798
     lagcit6 |   .0064685   .0026256     2.46   0.014     .0013183    .0116188
       _cons |    6.59565   .9320309     7.08   0.000     4.767448    8.423853
-------------+----------------------------------------------------------------
     sigma_u |  .60054269
     sigma_e |  .25285835
         rho |  .84941352   (fraction of variance due to u_i)
------------------------------------------------------------------------------

. xi: xtreg logwage $expl_0 $expl_cg if big_pat!=1,  fe robust  ;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-46       (_Isector_1 for sector==01 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: female omitted because of collinearity
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Ivuosi_1996 omitted because of collinearity
note: _Ivuosi_1997 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_2 omitted because of collinearity
note: _Isector_3 omitted because of collinearity
note: _Isector_6 omitted because of collinearity
note: _Isector_7 omitted because of collinearity
note: _Isector_8 omitted because of collinearity
note: _Isector_11 omitted because of collinearity
note: _Isector_15 omitted because of collinearity
note: _Isector_23 omitted because of collinearity
note: _Isector_28 omitted because of collinearity
note: _Isector_32 omitted because of collinearity
note: _Isector_33 omitted because of collinearity
note: _Isector_34 omitted because of collinearity
note: _Isector_36 omitted because of collinearity
note: _Isector_37 omitted because of collinearity
note: _Isector_43 omitted because of collinearity
note: _Isector_45 omitted because of collinearity
note: _Isector_46 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_55 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_64 omitted because of collinearity
note: _Ieduc_66 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_73 omitted because of collinearity
note: _Ieduc_76 omitted because of collinearity
note: _Ieduc_77 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity
note: _Ieduc_84 omitted because of collinearity
note: _Ieduc_86 omitted because of collinearity
note: _Ieduc_87 omitted because of collinearity
note: _Inuts2_6 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =      3822
Group variable: id                              Number of groups   =      1521

R-sq:  within  = 0.1249                         Obs per group: min =         1
       between = 0.0678                                        avg =       2.5
       overall = 0.0724                                        max =         3

                                                F(71,1520)         =         .
corr(u_i, Xb)  = -0.4668                        Prob > F           =         .

                                  (Std. Err. adjusted for 1521 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .1563649    .037584     4.16   0.000     .0826428    .2300869
        age2 |   -.001351   .0003998    -3.38   0.001    -.0021352   -.0005669
      tenure |   .0065194   .0022162     2.94   0.003     .0021724    .0108665
      female |          0  (omitted)
      months |   .0023045   .0047365     0.49   0.627    -.0069864    .0115953
         emp |   .0010044   .0007252     1.38   0.166    -.0004181    .0024268
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |          0  (omitted)
_Ivuosi_1995 |          0  (omitted)
_Ivuosi_1996 |          0  (omitted)
_Ivuosi_1997 |          0  (omitted)
_Ivuosi_1998 |   .0124697   .0075955     1.64   0.101     -.002429    .0273684
_Ivuosi_1999 |          0  (omitted)
  _Isector_2 |          0  (omitted)
  _Isector_3 |          0  (omitted)
  _Isector_4 |   .0019212   .0255833     0.08   0.940    -.0482611    .0521034
  _Isector_5 |  -.2455841   .1802566    -1.36   0.173    -.5991621     .107994
  _Isector_6 |          0  (omitted)
  _Isector_7 |          0  (omitted)
  _Isector_8 |          0  (omitted)
  _Isector_9 |   .2188638   .1749381     1.25   0.211    -.1242818    .5620094
 _Isector_10 |  -.1848115   .1388789    -1.33   0.183     -.457226     .087603
 _Isector_11 |          0  (omitted)
 _Isector_12 |   .0222411   .1011121     0.22   0.826    -.1760928     .220575
 _Isector_13 |   .0965693   .0707527     1.36   0.172     -.042214    .2353525
 _Isector_14 |  -.1194044   .1156134    -1.03   0.302     -.346183    .1073742
 _Isector_15 |          0  (omitted)
 _Isector_16 |  -.0664263   .1071813    -0.62   0.536    -.2766651    .1438126
 _Isector_17 |   .0267987   .1970343     0.14   0.892    -.3596891    .4132865
 _Isector_18 |  -.0573447   .0985244    -0.58   0.561    -.2506029    .1359135
 _Isector_19 |  -.0090453   .2098234    -0.04   0.966    -.4206193    .4025288
 _Isector_20 |   .1274072   .0926372     1.38   0.169    -.0543031    .3091175
 _Isector_21 |  -.2519573   .2461369    -1.02   0.306    -.7347612    .2308467
 _Isector_22 |   .0133905   .0977942     0.14   0.891    -.1784354    .2052163
 _Isector_23 |          0  (omitted)
 _Isector_24 |  -.1641465   .1209182    -1.36   0.175    -.4013308    .0730377
 _Isector_25 |   .0609461   .0852541     0.71   0.475     -.106282    .2281742
 _Isector_26 |   .1100384    .097905     1.12   0.261    -.0820047    .3020816
 _Isector_27 |    .092275   .1195513     0.77   0.440     -.142228    .3267779
 _Isector_28 |          0  (omitted)
 _Isector_29 |  -.1124543   .0950587    -1.18   0.237    -.2989143    .0740058
 _Isector_30 |    .225014   .1031619     2.18   0.029     .0226593    .4273687
 _Isector_31 |    .523737   .1005825     5.21   0.000     .3264418    .7210321
 _Isector_32 |          0  (omitted)
 _Isector_33 |          0  (omitted)
 _Isector_34 |          0  (omitted)
 _Isector_35 |  -.2575533   .1327095    -1.94   0.052    -.5178664    .0027598
 _Isector_36 |          0  (omitted)
 _Isector_37 |          0  (omitted)
 _Isector_38 |   .1799739   .1197567     1.50   0.133     -.054932    .4148797
 _Isector_39 |   .0887454   .1009402     0.88   0.379    -.1092513    .2867422
 _Isector_40 |  -.2258099   .2053367    -1.10   0.272    -.6285831    .1769634
 _Isector_41 |   .0228204   .0807544     0.28   0.778    -.1355816    .1812223
 _Isector_42 |    .059062   .0952905     0.62   0.535    -.1278527    .2459768
 _Isector_43 |          0  (omitted)
 _Isector_44 |   1.995056   .7904072     2.52   0.012     .4446513     3.54546
 _Isector_45 |          0  (omitted)
 _Isector_46 |          0  (omitted)
   _Ieduc_32 |          0  (omitted)
   _Ieduc_33 |          0  (omitted)
   _Ieduc_35 |    .060582   .0653184     0.93   0.354    -.0675417    .1887057
   _Ieduc_36 |          0  (omitted)
   _Ieduc_37 |          0  (omitted)
   _Ieduc_38 |          0  (omitted)
   _Ieduc_53 |          0  (omitted)
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |          0  (omitted)
   _Ieduc_56 |          0  (omitted)
   _Ieduc_57 |          0  (omitted)
   _Ieduc_63 |          0  (omitted)
   _Ieduc_64 |          0  (omitted)
   _Ieduc_65 |   .2396198   .2178934     1.10   0.272    -.1877838    .6670234
   _Ieduc_66 |          0  (omitted)
   _Ieduc_72 |          0  (omitted)
   _Ieduc_73 |          0  (omitted)
   _Ieduc_74 |  -.0329822   .0424542    -0.78   0.437    -.1162571    .0502928
   _Ieduc_75 |   .4255036   .2301957     1.85   0.065    -.0260312    .8770384
   _Ieduc_76 |          0  (omitted)
   _Ieduc_77 |          0  (omitted)
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |          0  (omitted)
   _Ieduc_85 |   .5456176   .2496513     2.19   0.029       .05592    1.035315
   _Ieduc_86 |          0  (omitted)
   _Ieduc_87 |          0  (omitted)
   _Ieduc_99 |   .2668183   .1312964     2.03   0.042      .009277    .5243597
   _Inuts2_2 |  -.0998942   .0912308    -1.09   0.274    -.2788457    .0790574
   _Inuts2_3 |  -.1616481   .0931865    -1.73   0.083    -.3444359    .0211397
   _Inuts2_4 |  -.1026527   .0866775    -1.18   0.236    -.2726729    .0673674
   _Inuts2_5 |  -.0134799   .0617665    -0.22   0.827    -.1346365    .1076768
   _Inuts2_6 |          0  (omitted)
      nocits |  -.0069407   .0358095    -0.19   0.846     -.077182    .0633006
      cits10 |   .0113287   .0208967     0.54   0.588    -.0296607     .052318
      cits20 |  -.0005845   .0212255    -0.03   0.978     -.042219    .0410499
      cits30 |   .0402889   .0627221     0.64   0.521    -.0827422    .1633199
     topcits |    .297261   .1188792     2.50   0.013     .0640764    .5304455
      lagnoc |  -.0444526   .0465854    -0.95   0.340    -.1358311    .0469259
      lag10c |  -.0057914   .0324676    -0.18   0.858    -.0694775    .0578946
      lag20c |  -.0025881   .0292263    -0.09   0.929    -.0599161      .05474
      lag30c |  -.0470673   .1764058    -0.27   0.790    -.3930917    .2989572
     lagtopc |   .1802498   .1022932     1.76   0.078    -.0204009    .3809005
     lagnoc2 |  -.1085897   .0677044    -1.60   0.109    -.2413936    .0242142
     lag10c2 |   .0214863   .0296244     0.73   0.468    -.0366227    .0795953
     lag20c2 |  -.0057164   .0333014    -0.17   0.864    -.0710381    .0596052
     lag30c2 |  -.1736789   .1773857    -0.98   0.328    -.5216256    .1742678
    lagtopc2 |   .0918487   .1148479     0.80   0.424    -.1334285    .3171259
     lagnoc3 |  -.0680049   .0537185    -1.27   0.206    -.1733752    .0373653
     lag10c3 |   .0269353   .0245003     1.10   0.272    -.0211227    .0749932
     lag20c3 |   .0298718   .0396083     0.75   0.451    -.0478209    .1075645
     lag30c3 |  -.1393426   .1620294    -0.86   0.390    -.4571675    .1784823
     lagtop3 |   .2581957   .0873896     2.95   0.003     .0867788    .4296126
     lagnoc4 |  -.0893471   .0534064    -1.67   0.095    -.1941052    .0154109
     lag10c4 |   .0011511   .0271145     0.04   0.966    -.0520347    .0543369
     lag20c4 |   .0152305   .0394996     0.39   0.700     -.062249      .09271
     lag30c4 |   .0152136   .1137045     0.13   0.894    -.2078208    .2382481
    lagtopc4 |   .3682089   .1167101     3.15   0.002     .1392791    .5971388
     lagnoc5 |  -.0617929    .055147    -1.12   0.263    -.1699652    .0463794
     lag10c5 |   .0427324    .023222     1.84   0.066    -.0028183     .088283
     lag20c5 |   .0110433   .0533268     0.21   0.836    -.0935587    .1156452
     lag30c5 |   .1166577    .100158     1.16   0.244    -.0798047    .3131201
    lagtopc5 |   .2557165    .079314     3.22   0.001       .10014     .411293
     lagnoc6 |  -.0146509   .0466081    -0.31   0.753    -.1060739     .076772
     lag10c6 |   .0393029   .0217286     1.81   0.071    -.0033183    .0819242
     lag20c6 |  -.0001929   .0225887    -0.01   0.993    -.0445013    .0441155
     lag30c6 |   .1409953   .0883685     1.60   0.111    -.0323419    .3143325
    lagtopc6 |   .3926128   .1669516     2.35   0.019     .0651329    .7200928
       _cons |   6.126866   .8668755     7.07   0.000     4.426468    7.827265
-------------+----------------------------------------------------------------
     sigma_u |  .53838103
     sigma_e |  .25204541
         rho |  .82023118   (fraction of variance due to u_i)
------------------------------------------------------------------------------

. *-----------------------------------------------------;
. *sector differences;
.  /* SECTION 5.5. ROBUSTNESS TEST #2 */
> *-----------------------------------------------------;
. destring sector, replace;
sector has all characters numeric; replaced as byte

. gen chemical=0;

. replace chemical=1 if sector==24;
(1907 real changes made)

. gen metal=0;

. replace metal=1 if sector==28;
(740 real changes made)

. gen machinery=0;

. replace machinery=1 if sector==29;
(3741 real changes made)

. gen it=0;

. replace it=1 if sector==32;
(2992 real changes made)

. gen medic=0;

. replace medic=1 if sector==33;
(1173 real changes made)

. xi: xtreg logwage age age2 tenure female  months emp  i.vuosi 
> i.chemical*pats i.machinery*pats i.metal*pats i.it*pats i.medic*pats 
> i.chemical*lagpats i.machinery*lagpats i.metal*lagpats i.it*lagpats i.medic*lagpats
> i.chemical*lagpat2 i.machinery*lagpat2 i.metal*lagpat2 i.it*lagpat2 i.medic*lagpat2
> i.chemical*lagpat3 i.machinery*lagpat3 i.metal*lagpat3 i.it*lagpat3 i.medic*lagpat3
> i.chemical*lagpat4 i.machinery*lagpat4 i.metal*lagpat4 i.it*lagpat4 i.medic*lagpat4
> i.chemical*lagpat5 i.machinery*lagpat5 i.metal*lagpat5 i.it*lagpat5 i.medic*lagpat5
> i.chemical*lagpat6 i.machinery*lagpat6 i.metal*lagpat6 i.it*lagpat6 i.medic*lagpat6
> i.educ i.nuts2, fe robust;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.chemical        _Ichemical_0-1      (naturally coded; _Ichemical_0 omitted)
i.chemical*pats   _IcheXpats_#        (coded as above)
i.machinery       _Imachinery_0-1     (naturally coded; _Imachinery_0 omitted)
i.machin~y*pats   _ImacXpats_#        (coded as above)
i.metal           _Imetal_0-1         (naturally coded; _Imetal_0 omitted)
i.metal*pats      _ImetXpats_#        (coded as above)
i.it              _Iit_0-1            (naturally coded; _Iit_0 omitted)
i.it*pats         _IitXpats_#         (coded as above)
i.medic           _Imedic_0-1         (naturally coded; _Imedic_0 omitted)
i.medic*pats      _ImedXpats_#        (coded as above)
i.chem~l*lagp~s   _IcheXlagpa_#       (coded as above)
i.mach~y*lagp~s   _ImacXlagpa_#       (coded as above)
i.metal*lagpats   _ImetXlagpa_#       (coded as above)
i.it*lagpats      _IitXlagpa_#        (coded as above)
i.medic*lagpats   _ImedXlagpa_#       (coded as above)
i.chem~l*l~pat2   _IcheXlagpaa#       (coded as above)
i.mach~y*l~pat2   _ImacXlagpaa#       (coded as above)
i.metal*lagpat2   _ImetXlagpaa#       (coded as above)
i.it*lagpat2      _IitXlagpaa#        (coded as above)
i.medic*lagpat2   _ImedXlagpaa#       (coded as above)
i.chem~l*l~pat3   _IcheXlagpab#       (coded as above)
i.mach~y*l~pat3   _ImacXlagpab#       (coded as above)
i.metal*lagpat3   _ImetXlagpab#       (coded as above)
i.it*lagpat3      _IitXlagpab#        (coded as above)
i.medic*lagpat3   _ImedXlagpab#       (coded as above)
i.chem~l*l~pat4   _IcheXlagpac#       (coded as above)
i.mach~y*l~pat4   _ImacXlagpac#       (coded as above)
i.metal*lagpat4   _ImetXlagpac#       (coded as above)
i.it*lagpat4      _IitXlagpac#        (coded as above)
i.medic*lagpat4   _ImedXlagpac#       (coded as above)
i.chem~l*l~pat5   _IcheXlagpad#       (coded as above)
i.mach~y*l~pat5   _ImacXlagpad#       (coded as above)
i.metal*lagpat5   _ImetXlagpad#       (coded as above)
i.it*lagpat5      _IitXlagpad#        (coded as above)
i.medic*lagpat5   _ImedXlagpad#       (coded as above)
i.chem~l*l~pat6   _IcheXlagpae#       (coded as above)
i.mach~y*l~pat6   _ImacXlagpae#       (coded as above)
i.metal*lagpat6   _ImetXlagpae#       (coded as above)
i.it*lagpat6      _IitXlagpae#        (coded as above)
i.medic*lagpat6   _ImedXlagpae#       (coded as above)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: female omitted because of collinearity
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Ivuosi_1996 omitted because of collinearity
note: _Ivuosi_1997 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Imetal_1 omitted because of collinearity
note: _Ichemical_1 omitted because of collinearity
note: _Imachinery_1 omitted because of collinearity
note: _Iit_1 omitted because of collinearity
note: _Imedic_1 omitted because of collinearity
note: _Ichemical_1 omitted because of collinearity
note: _Imachinery_1 omitted because of collinearity
note: _Imetal_1 omitted because of collinearity
note: _Iit_1 omitted because of collinearity
note: _Imedic_1 omitted because of collinearity
note: _Ichemical_1 omitted because of collinearity
note: _Imachinery_1 omitted because of collinearity
note: _Imetal_1 omitted because of collinearity
note: _Iit_1 omitted because of collinearity
note: _Imedic_1 omitted because of collinearity
note: _Ichemical_1 omitted because of collinearity
note: _Imachinery_1 omitted because of collinearity
note: _Imetal_1 omitted because of collinearity
note: _Iit_1 omitted because of collinearity
note: _Imedic_1 omitted because of collinearity
note: _Ichemical_1 omitted because of collinearity
note: _Imachinery_1 omitted because of collinearity
note: _Imetal_1 omitted because of collinearity
note: _Iit_1 omitted because of collinearity
note: _Imedic_1 omitted because of collinearity
note: _Ichemical_1 omitted because of collinearity
note: _Imachinery_1 omitted because of collinearity
note: _Imetal_1 omitted because of collinearity
note: _Iit_1 omitted because of collinearity
note: _Imedic_1 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_64 omitted because of collinearity
note: _Ieduc_66 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_73 omitted because of collinearity
note: _Ieduc_76 omitted because of collinearity
note: _Ieduc_77 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity
note: _Ieduc_86 omitted because of collinearity
note: _Ieduc_87 omitted because of collinearity
note: _Inuts2_6 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =      4938
Group variable: id                              Number of groups   =      1789

R-sq:  within  = 0.0747                         Obs per group: min =         1
       between = 0.0556                                        avg =       2.8
       overall = 0.0517                                        max =         3

                                                F(60,1788)         =         .
corr(u_i, Xb)  = -0.6598                        Prob > F           =         .

                                   (Std. Err. adjusted for 1789 clusters in id)
-------------------------------------------------------------------------------
              |               Robust
      logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
--------------+----------------------------------------------------------------
          age |   .2157684   .0510974     4.22   0.000     .1155514    .3159853
         age2 |  -.0018581   .0005417    -3.43   0.001    -.0029205   -.0007957
       tenure |   .0074998   .0024417     3.07   0.002     .0027109    .0122887
       female |          0  (omitted)
       months |   .0044026    .003923     1.12   0.262    -.0032916    .0120968
          emp |    .003259   .0008038     4.05   0.000     .0016826    .0048355
 _Ivuosi_1992 |          0  (omitted)
 _Ivuosi_1993 |          0  (omitted)
 _Ivuosi_1994 |          0  (omitted)
 _Ivuosi_1995 |          0  (omitted)
 _Ivuosi_1996 |          0  (omitted)
 _Ivuosi_1997 |          0  (omitted)
 _Ivuosi_1998 |   .0244659    .010051     2.43   0.015      .004753    .0441788
 _Ivuosi_1999 |          0  (omitted)
 _Ichemical_1 |   .1652759     .06102     2.71   0.007     .0455977     .284954
         pats |   .0386844   .0304512     1.27   0.204    -.0210394    .0984081
 _IcheXpats_1 |  -.0074785   .0399237    -0.19   0.851    -.0857805    .0708235
_Imachinery_1 |   .0350175    .058855     0.59   0.552    -.0804143    .1504493
 _ImacXpats_1 |  -.0177234   .0331299    -0.53   0.593    -.0827008     .047254
    _Imetal_1 |          0  (omitted)
 _ImetXpats_1 |   -.047981   .0329329    -1.46   0.145     -.112572      .01661
       _Iit_1 |  -.2619299   .2004599    -1.31   0.192    -.6550902    .1312304
  _IitXpats_1 |  -.0109767   .0485329    -0.23   0.821    -.1061638    .0842104
    _Imedic_1 |   .1287862   .0856678     1.50   0.133    -.0392333    .2968057
 _ImedXpats_1 |  -.0414337   .0362328    -1.14   0.253    -.1124967    .0296294
 _Ichemical_1 |          0  (omitted)
      lagpats |  -.0106893   .0338539    -0.32   0.752    -.0770867    .0557081
_IcheXlagpa_1 |    -.04735   .0608565    -0.78   0.437    -.1667072    .0720073
_Imachinery_1 |          0  (omitted)
_ImacXlagpa_1 |   .0555821   .0480285     1.16   0.247    -.0386158    .1497799
    _Imetal_1 |   .0781593   .1919752     0.41   0.684    -.2983601    .4546787
_ImetXlagpa_1 |   .0320364   .0472622     0.68   0.498    -.0606586    .1247313
       _Iit_1 |          0  (omitted)
 _IitXlagpa_1 |  -.0070186   .0599765    -0.12   0.907    -.1246499    .1106128
    _Imedic_1 |          0  (omitted)
_ImedXlagpa_1 |   .0315745   .0384549     0.82   0.412    -.0438467    .1069957
 _Ichemical_1 |          0  (omitted)
      lagpat2 |   .0107663   .0321044     0.34   0.737    -.0521997    .0737323
_IcheXlagpaa1 |   -.038434   .0396905    -0.97   0.333    -.1162786    .0394106
_Imachinery_1 |          0  (omitted)
_ImacXlagpaa1 |  -.0180466   .0361923    -0.50   0.618    -.0890302    .0529371
    _Imetal_1 |          0  (omitted)
_ImetXlagpaa1 |   .0403018   .0574707     0.70   0.483    -.0724151    .1530186
       _Iit_1 |          0  (omitted)
 _IitXlagpaa1 |   -.065754   .0824481    -0.80   0.425    -.2274588    .0959508
    _Imedic_1 |          0  (omitted)
_ImedXlagpaa1 |  -.0331422   .0414647    -0.80   0.424    -.1144666    .0481823
 _Ichemical_1 |          0  (omitted)
      lagpat3 |   .0034278   .0281997     0.12   0.903      -.05188    .0587355
_IcheXlagpab1 |  -.0496722   .0511438    -0.97   0.332    -.1499801    .0506357
_Imachinery_1 |          0  (omitted)
_ImacXlagpab1 |   -.001475   .0312755    -0.05   0.962    -.0628154    .0598654
    _Imetal_1 |          0  (omitted)
_ImetXlagpab1 |  -.0157382   .0714002    -0.22   0.826    -.1557748    .1242984
       _Iit_1 |          0  (omitted)
 _IitXlagpab1 |   .1066961    .078628     1.36   0.175    -.0475163    .2609085
    _Imedic_1 |          0  (omitted)
_ImedXlagpab1 |  -.0004682   .0326431    -0.01   0.989    -.0644908    .0635544
 _Ichemical_1 |          0  (omitted)
      lagpat4 |   .0489609   .0330125     1.48   0.138    -.0157863    .1137081
_IcheXlagpac1 |   .0321921   .0848011     0.38   0.704    -.1341277    .1985118
_Imachinery_1 |          0  (omitted)
_ImacXlagpac1 |  -.0328766    .037212    -0.88   0.377    -.1058602     .040107
    _Imetal_1 |          0  (omitted)
_ImetXlagpac1 |  -.0985018   .0639536    -1.54   0.124    -.2239334    .0269298
       _Iit_1 |          0  (omitted)
 _IitXlagpac1 |   .0578705   .0876574     0.66   0.509    -.1140512    .2297921
    _Imedic_1 |          0  (omitted)
_ImedXlagpac1 |   -.070421   .0385765    -1.83   0.068    -.1460807    .0052386
 _Ichemical_1 |          0  (omitted)
      lagpat5 |   .0566862   .0244539     2.32   0.021      .008725    .1046474
_IcheXlagpad1 |  -.0202927   .0602451    -0.34   0.736     -.138451    .0978656
_Imachinery_1 |          0  (omitted)
_ImacXlagpad1 |  -.0503576   .0302916    -1.66   0.097    -.1097682     .009053
    _Imetal_1 |          0  (omitted)
_ImetXlagpad1 |   .0032079   .0643538     0.05   0.960    -.1230087    .1294245
       _Iit_1 |          0  (omitted)
 _IitXlagpad1 |   .2073928   .1421557     1.46   0.145    -.0714161    .4862016
    _Imedic_1 |          0  (omitted)
_ImedXlagpad1 |   -.045955   .0316661    -1.45   0.147    -.1080614    .0161514
 _Ichemical_1 |          0  (omitted)
      lagpat6 |   .0868141   .0400563     2.17   0.030      .008252    .1653761
_IcheXlagpae1 |  -.0421072   .0556678    -0.76   0.450     -.151288    .0670735
_Imachinery_1 |          0  (omitted)
_ImacXlagpae1 |  -.0671027   .0439178    -1.53   0.127    -.1532383     .019033
    _Imetal_1 |          0  (omitted)
_ImetXlagpae1 |   -.139275   .0603783    -2.31   0.021    -.2576945   -.0208555
       _Iit_1 |          0  (omitted)
 _IitXlagpae1 |   .0410884   .1148581     0.36   0.721    -.1841819    .2663587
    _Imedic_1 |          0  (omitted)
_ImedXlagpae1 |  -.0709414   .0420907    -1.69   0.092    -.1534936    .0116107
    _Ieduc_32 |          0  (omitted)
    _Ieduc_33 |          0  (omitted)
    _Ieduc_35 |   .0167858   .0626799     0.27   0.789    -.1061478    .1397194
    _Ieduc_36 |          0  (omitted)
    _Ieduc_37 |          0  (omitted)
    _Ieduc_38 |          0  (omitted)
    _Ieduc_53 |          0  (omitted)
    _Ieduc_54 |          0  (omitted)
    _Ieduc_55 |   .9713472   .2432154     3.99   0.000     .4943308    1.448364
    _Ieduc_56 |          0  (omitted)
    _Ieduc_57 |          0  (omitted)
    _Ieduc_63 |          0  (omitted)
    _Ieduc_64 |          0  (omitted)
    _Ieduc_65 |   1.119992   .1845628     6.07   0.000     .7580101    1.481973
    _Ieduc_66 |          0  (omitted)
    _Ieduc_72 |          0  (omitted)
    _Ieduc_73 |          0  (omitted)
    _Ieduc_74 |   1.134933   .1806691     6.28   0.000     .7805881    1.489277
    _Ieduc_75 |   1.058391   .1673739     6.32   0.000      .730122     1.38666
    _Ieduc_76 |          0  (omitted)
    _Ieduc_77 |          0  (omitted)
    _Ieduc_83 |          0  (omitted)
    _Ieduc_84 |   1.151966   .1847321     6.24   0.000     .7896528     1.51428
    _Ieduc_85 |     1.0609   .2124026     4.99   0.000     .6443165    1.477483
    _Ieduc_86 |          0  (omitted)
    _Ieduc_87 |          0  (omitted)
    _Ieduc_99 |   .3081111   .1394035     2.21   0.027     .0347002    .5815219
    _Inuts2_2 |  -.2798026   .1834644    -1.53   0.127    -.6396299    .0800247
    _Inuts2_3 |   .0072723   .1682549     0.04   0.966    -.3227247    .3372692
    _Inuts2_4 |  -.1477132   .1494315    -0.99   0.323    -.4407921    .1453656
    _Inuts2_5 |  -.1178022   .1208873    -0.97   0.330    -.3548974    .1192931
    _Inuts2_6 |          0  (omitted)
        _cons |   3.870637   1.215074     3.19   0.001     1.487523    6.253751
--------------+----------------------------------------------------------------
      sigma_u |  .68418926
      sigma_e |  .38017375
          rho |  .76408589   (fraction of variance due to u_i)
-------------------------------------------------------------------------------

. xi: xtreg logwage age age2 tenure female  months emp  i.vuosi 
> i.chemical*pats i.machinery*pats  i.it*pats i.medic*pats 
> i.chemical*lagpats i.machinery*lagpats  i.it*lagpats i.medic*lagpats
> i.chemical*lagpat2 i.machinery*lagpat2  i.it*lagpat2 i.medic*lagpat2
> i.chemical*lagpat3 i.machinery*lagpat3  i.it*lagpat3 i.medic*lagpat3
> i.chemical*lagpat4 i.machinery*lagpat4  i.it*lagpat4 i.medic*lagpat4
> i.chemical*lagpat5 i.machinery*lagpat5  i.it*lagpat5 i.medic*lagpat5
> i.chemical*lagpat6 i.machinery*lagpat6  i.it*lagpat6 i.medic*lagpat6
> i.educ i.nuts2, fe robust;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.chemical        _Ichemical_0-1      (naturally coded; _Ichemical_0 omitted)
i.chemical*pats   _IcheXpats_#        (coded as above)
i.machinery       _Imachinery_0-1     (naturally coded; _Imachinery_0 omitted)
i.machin~y*pats   _ImacXpats_#        (coded as above)
i.it              _Iit_0-1            (naturally coded; _Iit_0 omitted)
i.it*pats         _IitXpats_#         (coded as above)
i.medic           _Imedic_0-1         (naturally coded; _Imedic_0 omitted)
i.medic*pats      _ImedXpats_#        (coded as above)
i.chem~l*lagp~s   _IcheXlagpa_#       (coded as above)
i.mach~y*lagp~s   _ImacXlagpa_#       (coded as above)
i.it*lagpats      _IitXlagpa_#        (coded as above)
i.medic*lagpats   _ImedXlagpa_#       (coded as above)
i.chem~l*l~pat2   _IcheXlagpaa#       (coded as above)
i.mach~y*l~pat2   _ImacXlagpaa#       (coded as above)
i.it*lagpat2      _IitXlagpaa#        (coded as above)
i.medic*lagpat2   _ImedXlagpaa#       (coded as above)
i.chem~l*l~pat3   _IcheXlagpab#       (coded as above)
i.mach~y*l~pat3   _ImacXlagpab#       (coded as above)
i.it*lagpat3      _IitXlagpab#        (coded as above)
i.medic*lagpat3   _ImedXlagpab#       (coded as above)
i.chem~l*l~pat4   _IcheXlagpac#       (coded as above)
i.mach~y*l~pat4   _ImacXlagpac#       (coded as above)
i.it*lagpat4      _IitXlagpac#        (coded as above)
i.medic*lagpat4   _ImedXlagpac#       (coded as above)
i.chem~l*l~pat5   _IcheXlagpad#       (coded as above)
i.mach~y*l~pat5   _ImacXlagpad#       (coded as above)
i.it*lagpat5      _IitXlagpad#        (coded as above)
i.medic*lagpat5   _ImedXlagpad#       (coded as above)
i.chem~l*l~pat6   _IcheXlagpae#       (coded as above)
i.mach~y*l~pat6   _ImacXlagpae#       (coded as above)
i.it*lagpat6      _IitXlagpae#        (coded as above)
i.medic*lagpat6   _ImedXlagpae#       (coded as above)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: female omitted because of collinearity
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Ivuosi_1996 omitted because of collinearity
note: _Ivuosi_1997 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Ichemical_1 omitted because of collinearity
note: _Imachinery_1 omitted because of collinearity
note: _Iit_1 omitted because of collinearity
note: _Imedic_1 omitted because of collinearity
note: _Ichemical_1 omitted because of collinearity
note: _Imachinery_1 omitted because of collinearity
note: _Iit_1 omitted because of collinearity
note: _Imedic_1 omitted because of collinearity
note: _Ichemical_1 omitted because of collinearity
note: _Imachinery_1 omitted because of collinearity
note: _Iit_1 omitted because of collinearity
note: _Imedic_1 omitted because of collinearity
note: _Ichemical_1 omitted because of collinearity
note: _Imachinery_1 omitted because of collinearity
note: _Iit_1 omitted because of collinearity
note: _Imedic_1 omitted because of collinearity
note: _Ichemical_1 omitted because of collinearity
note: _Imachinery_1 omitted because of collinearity
note: _Iit_1 omitted because of collinearity
note: _Imedic_1 omitted because of collinearity
note: _Ichemical_1 omitted because of collinearity
note: _Imachinery_1 omitted because of collinearity
note: _Iit_1 omitted because of collinearity
note: _Imedic_1 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_64 omitted because of collinearity
note: _Ieduc_66 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_73 omitted because of collinearity
note: _Ieduc_76 omitted because of collinearity
note: _Ieduc_77 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity
note: _Ieduc_86 omitted because of collinearity
note: _Ieduc_87 omitted because of collinearity
note: _Inuts2_6 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =      4938
Group variable: id                              Number of groups   =      1789

R-sq:  within  = 0.0735                         Obs per group: min =         1
       between = 0.0588                                        avg =       2.8
       overall = 0.0543                                        max =         3

                                                F(52,1788)         =         .
corr(u_i, Xb)  = -0.6573                        Prob > F           =         .

                                   (Std. Err. adjusted for 1789 clusters in id)
-------------------------------------------------------------------------------
              |               Robust
      logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
--------------+----------------------------------------------------------------
          age |   .2148068   .0510209     4.21   0.000     .1147399    .3148737
         age2 |  -.0018535   .0005413    -3.42   0.001    -.0029152   -.0007918
       tenure |   .0079072   .0024611     3.21   0.001     .0030802    .0127342
       female |          0  (omitted)
       months |    .004132   .0038855     1.06   0.288    -.0034885    .0117526
          emp |    .003264    .000802     4.07   0.000     .0016909     .004837
 _Ivuosi_1992 |          0  (omitted)
 _Ivuosi_1993 |          0  (omitted)
 _Ivuosi_1994 |          0  (omitted)
 _Ivuosi_1995 |          0  (omitted)
 _Ivuosi_1996 |          0  (omitted)
 _Ivuosi_1997 |          0  (omitted)
 _Ivuosi_1998 |   .0248252    .010047     2.47   0.014     .0051201    .0445303
 _Ivuosi_1999 |          0  (omitted)
 _Ichemical_1 |   .1578055    .059691     2.64   0.008      .040734     .274877
         pats |   .0313413   .0255287     1.23   0.220    -.0187279    .0814104
 _IcheXpats_1 |   .0000413   .0364254     0.00   0.999    -.0713994    .0714821
_Imachinery_1 |   .0255403   .0666428     0.38   0.702    -.1051658    .1562463
 _ImacXpats_1 |  -.0103353    .028716    -0.36   0.719    -.0666557    .0459851
       _Iit_1 |  -.2662568   .1995105    -1.33   0.182     -.657555    .1250414
  _IitXpats_1 |  -.0036643   .0456608    -0.08   0.936    -.0932184    .0858897
    _Imedic_1 |   .1227164   .0844668     1.45   0.146    -.0429476    .2883805
 _ImedXpats_1 |  -.0341563   .0323081    -1.06   0.291     -.097522    .0292093
 _Ichemical_1 |          0  (omitted)
      lagpats |  -.0095985   .0308086    -0.31   0.755    -.0700232    .0508262
_IcheXlagpa_1 |  -.0486811   .0593437    -0.82   0.412    -.1650715    .0677093
_Imachinery_1 |          0  (omitted)
_ImacXlagpa_1 |    .054653   .0459572     1.19   0.235    -.0354825    .1447885
       _Iit_1 |          0  (omitted)
 _IitXlagpa_1 |  -.0080846   .0583726    -0.14   0.890    -.1225704    .1064012
    _Imedic_1 |          0  (omitted)
_ImedXlagpa_1 |   .0301569   .0360045     0.84   0.402    -.0404585    .1007723
 _Ichemical_1 |          0  (omitted)
      lagpat2 |   .0169816   .0296402     0.57   0.567    -.0411515    .0751147
_IcheXlagpaa1 |  -.0446031   .0380409    -1.17   0.241    -.1192124    .0300062
_Imachinery_1 |          0  (omitted)
_ImacXlagpaa1 |  -.0239864   .0340959    -0.70   0.482    -.0908584    .0428856
       _Iit_1 |          0  (omitted)
 _IitXlagpaa1 |  -.0721126   .0817552    -0.88   0.378    -.2324584    .0882331
    _Imedic_1 |          0  (omitted)
_ImedXlagpaa1 |  -.0395927   .0397108    -1.00   0.319    -.1174771    .0382918
 _Ichemical_1 |          0  (omitted)
      lagpat3 |   .0029686   .0265559     0.11   0.911    -.0491152    .0550525
_IcheXlagpab1 |  -.0490883    .050508    -0.97   0.331    -.1481492    .0499726
_Imachinery_1 |          0  (omitted)
_ImacXlagpab1 |  -.0007627   .0298313    -0.03   0.980    -.0592707    .0577452
       _Iit_1 |          0  (omitted)
 _IitXlagpab1 |   .1071178    .078188     1.37   0.171    -.0462318    .2604674
    _Imedic_1 |          0  (omitted)
_ImedXlagpab1 |  -.0004664    .031323    -0.01   0.988    -.0618998     .060967
 _Ichemical_1 |          0  (omitted)
      lagpat4 |   .0404273   .0308876     1.31   0.191    -.0201524     .101007
_IcheXlagpac1 |   .0402663   .0844142     0.48   0.633    -.1252945    .2058271
_Imachinery_1 |          0  (omitted)
_ImacXlagpac1 |  -.0240759   .0351312    -0.69   0.493    -.0929784    .0448267
       _Iit_1 |          0  (omitted)
 _IitXlagpac1 |   .0663231   .0869671     0.76   0.446    -.1042448     .236891
    _Imedic_1 |          0  (omitted)
_ImedXlagpac1 |  -.0627835   .0370524    -1.69   0.090    -.1354541     .009887
 _Ichemical_1 |          0  (omitted)
      lagpat5 |   .0540031   .0223179     2.42   0.016     .0102312    .0977751
_IcheXlagpad1 |  -.0177983   .0598215    -0.30   0.766    -.1351257    .0995291
_Imachinery_1 |          0  (omitted)
_ImacXlagpad1 |  -.0474659   .0282242    -1.68   0.093    -.1028217    .0078899
       _Iit_1 |          0  (omitted)
 _IitXlagpad1 |   .2098483   .1419071     1.48   0.139     -.068473    .4881696
    _Imedic_1 |          0  (omitted)
_ImedXlagpad1 |  -.0442788   .0304955    -1.45   0.147    -.1040893    .0155317
 _Ichemical_1 |          0  (omitted)
      lagpat6 |    .075721   .0367599     2.06   0.040     .0036242    .1478178
_IcheXlagpae1 |  -.0319561   .0535949    -0.60   0.551    -.1370712    .0731591
_Imachinery_1 |          0  (omitted)
_ImacXlagpae1 |   -.056177   .0406407    -1.38   0.167    -.1358853    .0235312
       _Iit_1 |          0  (omitted)
 _IitXlagpae1 |    .051976   .1137998     0.46   0.648    -.1712186    .2751706
    _Imedic_1 |          0  (omitted)
_ImedXlagpae1 |  -.0602056   .0393682    -1.53   0.126    -.1374181    .0170068
    _Ieduc_32 |          0  (omitted)
    _Ieduc_33 |          0  (omitted)
    _Ieduc_35 |   .0165208    .062371     0.26   0.791    -.1058068    .1388484
    _Ieduc_36 |          0  (omitted)
    _Ieduc_37 |          0  (omitted)
    _Ieduc_38 |          0  (omitted)
    _Ieduc_53 |          0  (omitted)
    _Ieduc_54 |          0  (omitted)
    _Ieduc_55 |   .9620501   .2444984     3.93   0.000     .4825175    1.441583
    _Ieduc_56 |          0  (omitted)
    _Ieduc_57 |          0  (omitted)
    _Ieduc_63 |          0  (omitted)
    _Ieduc_64 |          0  (omitted)
    _Ieduc_65 |   1.112532   .1867319     5.96   0.000     .7462958    1.478767
    _Ieduc_66 |          0  (omitted)
    _Ieduc_72 |          0  (omitted)
    _Ieduc_73 |          0  (omitted)
    _Ieduc_74 |   1.127507   .1830195     6.16   0.000      .768552    1.486461
    _Ieduc_75 |   1.057072   .1670031     6.33   0.000     .7295306    1.384614
    _Ieduc_76 |          0  (omitted)
    _Ieduc_77 |          0  (omitted)
    _Ieduc_83 |          0  (omitted)
    _Ieduc_84 |    1.14083   .1875792     6.08   0.000     .7729328    1.508728
    _Ieduc_85 |   1.058554   .2118501     5.00   0.000     .6430544    1.474054
    _Ieduc_86 |          0  (omitted)
    _Ieduc_87 |          0  (omitted)
    _Ieduc_99 |   .2212649    .080106     2.76   0.006     .0641538    .3783761
    _Inuts2_2 |  -.2748588    .184019    -1.49   0.135    -.6357737     .086056
    _Inuts2_3 |   .0092757   .1669562     0.06   0.956    -.3181741    .3367256
    _Inuts2_4 |   -.144192   .1486689    -0.97   0.332     -.435775     .147391
    _Inuts2_5 |  -.1153802   .1204559    -0.96   0.338    -.3516293    .1208688
    _Inuts2_6 |          0  (omitted)
        _cons |   3.914541   1.214018     3.22   0.001     1.533498    6.295584
--------------+----------------------------------------------------------------
      sigma_u |  .68076555
      sigma_e |  .37992875
          rho |  .76250608   (fraction of variance due to u_i)
-------------------------------------------------------------------------------

. *-----------------------------------------------------;
. *gender differences;
.  /* SECTION 5.5. ROBUSTNESS TEST #4 */
> *-----------------------------------------------------;
. xi: xtreg logwage age age2 tenure female  months emp  i.vuosi 
> i.sp*pats i.sp*lagpats i.sp*lagpat2 i.sp*lagpat3 i.sp*lagpat4 i.sp*lagpat5 i.sp*lagpat6 i.sector
>  i.educ i.nuts2, fe robust;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sp              _Isp_1-2            (naturally coded; _Isp_1 omitted)
i.sp*pats         _IspXpats_#         (coded as above)
i.sp*lagpats      _IspXlagpa_#        (coded as above)
i.sp*lagpat2      _IspXlagpaa#        (coded as above)
i.sp*lagpat3      _IspXlagpab#        (coded as above)
i.sp*lagpat4      _IspXlagpac#        (coded as above)
i.sp*lagpat5      _IspXlagpad#        (coded as above)
i.sp*lagpat6      _IspXlagpae#        (coded as above)
i.sector          _Isector_1-92       (naturally coded; _Isector_1 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: female omitted because of collinearity
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Ivuosi_1996 omitted because of collinearity
note: _Ivuosi_1997 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isp_2 omitted because of collinearity
note: _Isp_2 omitted because of collinearity
note: _Isp_2 omitted because of collinearity
note: _Isp_2 omitted because of collinearity
note: _Isp_2 omitted because of collinearity
note: _Isp_2 omitted because of collinearity
note: _Isp_2 omitted because of collinearity
note: _Isector_10 omitted because of collinearity
note: _Isector_13 omitted because of collinearity
note: _Isector_16 omitted because of collinearity
note: _Isector_17 omitted because of collinearity
note: _Isector_18 omitted because of collinearity
note: _Isector_22 omitted because of collinearity
note: _Isector_26 omitted because of collinearity
note: _Isector_34 omitted because of collinearity
note: _Isector_50 omitted because of collinearity
note: _Isector_60 omitted because of collinearity
note: _Isector_62 omitted because of collinearity
note: _Isector_63 omitted because of collinearity
note: _Isector_65 omitted because of collinearity
note: _Isector_66 omitted because of collinearity
note: _Isector_80 omitted because of collinearity
note: _Isector_90 omitted because of collinearity
note: _Isector_92 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_64 omitted because of collinearity
note: _Ieduc_66 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_73 omitted because of collinearity
note: _Ieduc_76 omitted because of collinearity
note: _Ieduc_77 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity
note: _Ieduc_86 omitted because of collinearity
note: _Ieduc_87 omitted because of collinearity
note: _Inuts2_6 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =      4938
Group variable: id                              Number of groups   =      1789

R-sq:  within  = 0.0759                         Obs per group: min =         1
       between = 0.0557                                        avg =       2.8
       overall = 0.0512                                        max =         3

                                                F(51,1788)         =         .
corr(u_i, Xb)  = -0.6612                        Prob > F           =         .

                                  (Std. Err. adjusted for 1789 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .2021897   .0484795     4.17   0.000     .1071072    .2972722
        age2 |  -.0016622    .000497    -3.34   0.001    -.0026371   -.0006874
      tenure |   .0079252   .0022309     3.55   0.000     .0035498    .0123006
      female |          0  (omitted)
      months |   .0067412   .0038316     1.76   0.079    -.0007736    .0142561
         emp |   .0042029   .0009935     4.23   0.000     .0022544    .0061515
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |          0  (omitted)
_Ivuosi_1995 |          0  (omitted)
_Ivuosi_1996 |          0  (omitted)
_Ivuosi_1997 |          0  (omitted)
_Ivuosi_1998 |   .0275986    .010169     2.71   0.007     .0076542     .047543
_Ivuosi_1999 |          0  (omitted)
      _Isp_2 |          0  (omitted)
        pats |   .0245147    .015022     1.63   0.103    -.0049479    .0539773
 _IspXpats_2 |  -.0202089   .0382077    -0.53   0.597    -.0951454    .0547276
      _Isp_2 |          0  (omitted)
     lagpats |  -.0050711   .0237128    -0.21   0.831    -.0515788    .0414366
_IspXlagpa_2 |  -.0065903   .0585471    -0.11   0.910    -.1214183    .1082376
      _Isp_2 |          0  (omitted)
     lagpat2 |  -.0244829   .0238087    -1.03   0.304    -.0711787    .0222128
_IspXlagpaa2 |   .0214204   .0670473     0.32   0.749    -.1100789    .1529198
      _Isp_2 |          0  (omitted)
     lagpat3 |    .013451    .021528     0.62   0.532    -.0287716    .0556736
_IspXlagpab2 |   -.021924   .0650673    -0.34   0.736    -.1495399     .105692
      _Isp_2 |          0  (omitted)
     lagpat4 |   .0461507   .0215074     2.15   0.032     .0039684     .088333
_IspXlagpac2 |   -.097275    .057636    -1.69   0.092    -.2103159     .015766
      _Isp_2 |          0  (omitted)
     lagpat5 |   .0569977   .0218868     2.60   0.009     .0140713    .0999241
_IspXlagpad2 |  -.0665897    .066342    -1.00   0.316    -.1967057    .0635264
      _Isp_2 |          0  (omitted)
     lagpat6 |   .0517475   .0190732     2.71   0.007     .0143393    .0891557
_IspXlagpae2 |  -.0818953   .0439558    -1.86   0.063    -.1681055    .0043149
 _Isector_10 |          0  (omitted)
 _Isector_13 |          0  (omitted)
 _Isector_14 |   .0267245   .0412195     0.65   0.517    -.0541191     .107568
 _Isector_15 |  -.2960824   .1981721    -1.49   0.135    -.6847557    .0925909
 _Isector_16 |          0  (omitted)
 _Isector_17 |          0  (omitted)
 _Isector_18 |          0  (omitted)
 _Isector_20 |   .0927729   .2722445     0.34   0.733     -.441178    .6267237
 _Isector_21 |  -.4216481   .2446822    -1.72   0.085    -.9015412    .0582449
 _Isector_22 |          0  (omitted)
 _Isector_23 |  -.1630022    .131422    -1.24   0.215     -.420759    .0947547
 _Isector_24 |   .0302453   .1125906     0.27   0.788    -.1905778    .2510683
 _Isector_25 |  -.1040804   .1481139    -0.70   0.482     -.394575    .1864142
 _Isector_26 |          0  (omitted)
 _Isector_27 |  -.2581407   .1548203    -1.67   0.096    -.5617885    .0455071
 _Isector_28 |   -.033973   .2155917    -0.16   0.875    -.4568112    .3888651
 _Isector_29 |  -.0984712   .1314937    -0.75   0.454    -.3563687    .1594263
 _Isector_30 |  -.0946844      .2099    -0.45   0.652    -.5063596    .3169908
 _Isector_31 |     .00096   .1488631     0.01   0.995     -.291004    .2929239
 _Isector_32 |   -.356927   .2411882    -1.48   0.139    -.8299673    .1161134
 _Isector_33 |  -.0258594   .1315723    -0.20   0.844     -.283911    .2321921
 _Isector_34 |          0  (omitted)
 _Isector_35 |  -.2163175   .1670662    -1.29   0.196    -.5439831    .1113481
 _Isector_36 |   .0225483   .1196037     0.19   0.850    -.2120295    .2571261
 _Isector_40 |  -.0065983   .1307976    -0.05   0.960    -.2631306     .249934
 _Isector_45 |   -.000937   .1686925    -0.01   0.996    -.3317922    .3299183
 _Isector_50 |          0  (omitted)
 _Isector_51 |  -.1166787   .1320404    -0.88   0.377    -.3756484    .1422911
 _Isector_52 |   .0423944   .1388774     0.31   0.760    -.2299847    .3147735
 _Isector_55 |   .4736706   .1396099     3.39   0.001     .1998548    .7474864
 _Isector_60 |          0  (omitted)
 _Isector_62 |          0  (omitted)
 _Isector_63 |          0  (omitted)
 _Isector_64 |  -.1253789   .2320504    -0.54   0.589    -.5804974    .3297395
 _Isector_65 |          0  (omitted)
 _Isector_66 |          0  (omitted)
 _Isector_70 |    .144224   .1648777     0.87   0.382    -.1791493    .4675974
 _Isector_71 |   .0043958   .1414555     0.03   0.975    -.2730397    .2818313
 _Isector_72 |  -.1346599   .2080895    -0.65   0.518     -.542784    .2734642
 _Isector_73 |  -.0139065   .1210906    -0.11   0.909    -.2514005    .2235876
 _Isector_74 |  -.0355291   .1322919    -0.27   0.788    -.2949921    .2239339
 _Isector_80 |          0  (omitted)
 _Isector_85 |   2.092931   .8570097     2.44   0.015     .4120855    3.773777
 _Isector_90 |          0  (omitted)
 _Isector_92 |          0  (omitted)
   _Ieduc_32 |          0  (omitted)
   _Ieduc_33 |          0  (omitted)
   _Ieduc_35 |    .055302   .0519292     1.06   0.287    -.0465464    .1571504
   _Ieduc_36 |          0  (omitted)
   _Ieduc_37 |          0  (omitted)
   _Ieduc_38 |          0  (omitted)
   _Ieduc_53 |          0  (omitted)
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |   .8550185   .3329015     2.57   0.010     .2021016    1.507935
   _Ieduc_56 |          0  (omitted)
   _Ieduc_57 |          0  (omitted)
   _Ieduc_63 |          0  (omitted)
   _Ieduc_64 |          0  (omitted)
   _Ieduc_65 |   .9717722   .2862036     3.40   0.001     .4104435    1.533101
   _Ieduc_66 |          0  (omitted)
   _Ieduc_72 |          0  (omitted)
   _Ieduc_73 |          0  (omitted)
   _Ieduc_74 |   1.012945   .2827205     3.58   0.000      .458448    1.567443
   _Ieduc_75 |   1.049843   .2264116     4.64   0.000     .6057843    1.493903
   _Ieduc_76 |          0  (omitted)
   _Ieduc_77 |          0  (omitted)
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |   1.025713   .2823558     3.63   0.000     .4719313    1.579495
   _Ieduc_85 |   1.099852   .2480099     4.43   0.000     .6134325    1.586272
   _Ieduc_86 |          0  (omitted)
   _Ieduc_87 |          0  (omitted)
   _Ieduc_99 |   .3150199   .1173166     2.69   0.007     .0849278    .5451119
   _Inuts2_2 |    -.27128   .1936654    -1.40   0.161    -.6511143    .1085543
   _Inuts2_3 |  -.0360175   .1317349    -0.27   0.785     -.294388     .222353
   _Inuts2_4 |  -.1529834   .1590063    -0.96   0.336    -.4648411    .1588742
   _Inuts2_5 |  -.1085577   .1092821    -0.99   0.321    -.3228918    .1057764
   _Inuts2_6 |          0  (omitted)
       _cons |   4.185074   1.198918     3.49   0.000     1.833647    6.536501
-------------+----------------------------------------------------------------
     sigma_u |  .68573116
     sigma_e |  .37963301
         rho |  .76540801   (fraction of variance due to u_i)
------------------------------------------------------------------------------

. xi: xtreg logwage age age2 tenure female  months emp  i.vuosi 
> i.sp*cits i.sp*lagcits i.sp*lagcit2 i.sp*lagcit3 i.sp*lagcit4 i.sp*lagcit5 i.sp*lagcit6 i.sector
>  i.educ i.nuts2, fe robust;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sp              _Isp_1-2            (naturally coded; _Isp_1 omitted)
i.sp*cits         _IspXcits_#         (coded as above)
i.sp*lagcits      _IspXlagci_#        (coded as above)
i.sp*lagcit2      _IspXlagcia#        (coded as above)
i.sp*lagcit3      _IspXlagcib#        (coded as above)
i.sp*lagcit4      _IspXlagcic#        (coded as above)
i.sp*lagcit5      _IspXlagcid#        (coded as above)
i.sp*lagcit6      _IspXlagcie#        (coded as above)
i.sector          _Isector_1-92       (naturally coded; _Isector_1 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: female omitted because of collinearity
note: _Ivuosi_1992 omitted because of collinearity
note: _Ivuosi_1993 omitted because of collinearity
note: _Ivuosi_1994 omitted because of collinearity
note: _Ivuosi_1995 omitted because of collinearity
note: _Ivuosi_1996 omitted because of collinearity
note: _Ivuosi_1997 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isp_2 omitted because of collinearity
note: _Isp_2 omitted because of collinearity
note: _Isp_2 omitted because of collinearity
note: _Isp_2 omitted because of collinearity
note: _Isp_2 omitted because of collinearity
note: _Isp_2 omitted because of collinearity
note: _Isp_2 omitted because of collinearity
note: _Isector_10 omitted because of collinearity
note: _Isector_13 omitted because of collinearity
note: _Isector_16 omitted because of collinearity
note: _Isector_17 omitted because of collinearity
note: _Isector_18 omitted because of collinearity
note: _Isector_22 omitted because of collinearity
note: _Isector_26 omitted because of collinearity
note: _Isector_34 omitted because of collinearity
note: _Isector_50 omitted because of collinearity
note: _Isector_60 omitted because of collinearity
note: _Isector_62 omitted because of collinearity
note: _Isector_63 omitted because of collinearity
note: _Isector_65 omitted because of collinearity
note: _Isector_66 omitted because of collinearity
note: _Isector_80 omitted because of collinearity
note: _Isector_90 omitted because of collinearity
note: _Isector_92 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_64 omitted because of collinearity
note: _Ieduc_66 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_73 omitted because of collinearity
note: _Ieduc_76 omitted because of collinearity
note: _Ieduc_77 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity
note: _Ieduc_86 omitted because of collinearity
note: _Ieduc_87 omitted because of collinearity
note: _Inuts2_6 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =      4938
Group variable: id                              Number of groups   =      1789

R-sq:  within  = 0.0797                         Obs per group: min =         1
       between = 0.0672                                        avg =       2.8
       overall = 0.0624                                        max =         3

                                                F(51,1788)         =         .
corr(u_i, Xb)  = -0.6410                        Prob > F           =         .

                                  (Std. Err. adjusted for 1789 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .1794814   .0486761     3.69   0.000     .0840134    .2749494
        age2 |  -.0014374   .0004982    -2.89   0.004    -.0024145   -.0004604
      tenure |   .0075951   .0021124     3.60   0.000     .0034521    .0117381
      female |          0  (omitted)
      months |   .0050024   .0047108     1.06   0.288    -.0042369    .0142416
         emp |   .0042949    .000992     4.33   0.000     .0023492    .0062406
_Ivuosi_1992 |          0  (omitted)
_Ivuosi_1993 |          0  (omitted)
_Ivuosi_1994 |          0  (omitted)
_Ivuosi_1995 |          0  (omitted)
_Ivuosi_1996 |          0  (omitted)
_Ivuosi_1997 |          0  (omitted)
_Ivuosi_1998 |   .0257394   .0102676     2.51   0.012     .0056016    .0458772
_Ivuosi_1999 |          0  (omitted)
      _Isp_2 |          0  (omitted)
        cits |   .0017763   .0010512     1.69   0.091    -.0002854    .0038381
 _IspXcits_2 |   -.001806    .001497    -1.21   0.228    -.0047421    .0011301
      _Isp_2 |          0  (omitted)
     lagcits |  -.0001268   .0016421    -0.08   0.938    -.0033474    .0030938
_IspXlagci_2 |  -.0044801   .0062748    -0.71   0.475    -.0167868    .0078267
      _Isp_2 |          0  (omitted)
     lagcit2 |   .0014275   .0018406     0.78   0.438    -.0021824    .0050374
_IspXlagcia2 |  -.0060023   .0053453    -1.12   0.262    -.0164861    .0044815
      _Isp_2 |          0  (omitted)
     lagcit3 |   .0037093   .0020212     1.84   0.067    -.0002548    .0076735
_IspXlagcib2 |  -.0034838   .0075156    -0.46   0.643     -.018224    .0112565
      _Isp_2 |          0  (omitted)
     lagcit4 |   .0035723    .001908     1.87   0.061    -.0001699    .0073144
_IspXlagcic2 |  -.0080226   .0076305    -1.05   0.293    -.0229881     .006943
      _Isp_2 |          0  (omitted)
     lagcit5 |    .004396   .0016965     2.59   0.010     .0010686    .0077233
_IspXlagcid2 |  -.0008036   .0110932    -0.07   0.942    -.0225607    .0209534
      _Isp_2 |          0  (omitted)
     lagcit6 |    .005202   .0026203     1.99   0.047     .0000629    .0103411
_IspXlagcie2 |  -.0036157   .0044901    -0.81   0.421    -.0124221    .0051907
 _Isector_10 |          0  (omitted)
 _Isector_13 |          0  (omitted)
 _Isector_14 |    .006521   .0358802     0.18   0.856    -.0638506    .0768926
 _Isector_15 |  -.3002207   .2005483    -1.50   0.135    -.6935543    .0931129
 _Isector_16 |          0  (omitted)
 _Isector_17 |          0  (omitted)
 _Isector_18 |          0  (omitted)
 _Isector_20 |   .1182625    .266962     0.44   0.658    -.4053279    .6418529
 _Isector_21 |  -.4379472   .2256327    -1.94   0.052    -.8804788    .0045844
 _Isector_22 |          0  (omitted)
 _Isector_23 |  -.1845188   .1342957    -1.37   0.170    -.4479118    .0788742
 _Isector_24 |   .0203983   .1164204     0.18   0.861    -.2079361    .2487326
 _Isector_25 |  -.1128397   .1474053    -0.77   0.444    -.4019445    .1762651
 _Isector_26 |          0  (omitted)
 _Isector_27 |  -.2638136   .1533586    -1.72   0.086    -.5645944    .0369672
 _Isector_28 |   -.047541   .2208329    -0.22   0.830    -.4806587    .3855767
 _Isector_29 |  -.0928542   .1342581    -0.69   0.489    -.3561733     .170465
 _Isector_30 |  -.1019261   .2067359    -0.49   0.622    -.5073955    .3035433
 _Isector_31 |   .0059725   .1500332     0.04   0.968    -.2882863    .3002313
 _Isector_32 |  -.3670382   .2415218    -1.52   0.129    -.8407329    .1066565
 _Isector_33 |   -.021912   .1333361    -0.16   0.869     -.283423     .239599
 _Isector_34 |          0  (omitted)
 _Isector_35 |  -.2295532   .1683472    -1.36   0.173    -.5597311    .1006247
 _Isector_36 |  -.0027636   .1211466    -0.02   0.982    -.2403674    .2348402
 _Isector_40 |  -.0278457   .1356826    -0.21   0.837    -.2939588    .2382674
 _Isector_45 |   .0439183   .1689597     0.26   0.795    -.2874609    .3752976
 _Isector_50 |          0  (omitted)
 _Isector_51 |    -.13375   .1347253    -0.99   0.321    -.3979855    .1304856
 _Isector_52 |   .0285481   .1397637     0.20   0.838    -.2455692    .3026655
 _Isector_55 |   .4038854   .1532868     2.63   0.008     .1032453    .7045255
 _Isector_60 |          0  (omitted)
 _Isector_62 |          0  (omitted)
 _Isector_63 |          0  (omitted)
 _Isector_64 |   -.126292   .2327076    -0.54   0.587    -.5826996    .3301155
 _Isector_65 |          0  (omitted)
 _Isector_66 |          0  (omitted)
 _Isector_70 |   .1302501   .1653945     0.79   0.431    -.1941367     .454637
 _Isector_71 |   .0034312   .1275035     0.03   0.979    -.2466404    .2535027
 _Isector_72 |  -.0858348   .2252347    -0.38   0.703    -.5275857    .3559161
 _Isector_73 |   -.028808   .1237416    -0.23   0.816    -.2715014    .2138855
 _Isector_74 |  -.0440315   .1335824    -0.33   0.742    -.3060255    .2179625
 _Isector_80 |          0  (omitted)
 _Isector_85 |    2.02386   .8369573     2.42   0.016     .3823425    3.665377
 _Isector_90 |          0  (omitted)
 _Isector_92 |          0  (omitted)
   _Ieduc_32 |          0  (omitted)
   _Ieduc_33 |          0  (omitted)
   _Ieduc_35 |   .0238818   .0466088     0.51   0.608    -.0675317    .1152953
   _Ieduc_36 |          0  (omitted)
   _Ieduc_37 |          0  (omitted)
   _Ieduc_38 |          0  (omitted)
   _Ieduc_53 |          0  (omitted)
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |    .837479   .3265994     2.56   0.010     .1969223    1.478036
   _Ieduc_56 |          0  (omitted)
   _Ieduc_57 |          0  (omitted)
   _Ieduc_63 |          0  (omitted)
   _Ieduc_64 |          0  (omitted)
   _Ieduc_65 |   .9897627   .2873945     3.44   0.001     .4260983    1.553427
   _Ieduc_66 |          0  (omitted)
   _Ieduc_72 |          0  (omitted)
   _Ieduc_73 |          0  (omitted)
   _Ieduc_74 |   1.047372   .2830128     3.70   0.000      .492301    1.602442
   _Ieduc_75 |   1.044888   .2294125     4.55   0.000     .5949435    1.494833
   _Ieduc_76 |          0  (omitted)
   _Ieduc_77 |          0  (omitted)
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |   1.050485   .2863382     3.67   0.000     .4888922    1.612078
   _Ieduc_85 |   1.099846    .259329     4.24   0.000     .5912266    1.608466
   _Ieduc_86 |          0  (omitted)
   _Ieduc_87 |          0  (omitted)
   _Ieduc_99 |   .2767849   .1158366     2.39   0.017     .0495955    .5039744
   _Inuts2_2 |   -.278833   .1921976    -1.45   0.147    -.6557885    .0981225
   _Inuts2_3 |  -.0510763   .1369265    -0.37   0.709    -.3196291    .2174766
   _Inuts2_4 |  -.1424874   .1558101    -0.91   0.361    -.4480765    .1631017
   _Inuts2_5 |  -.0630581   .1212772    -0.52   0.603    -.3009179    .1748018
   _Inuts2_6 |          0  (omitted)
       _cons |     4.7492   1.222247     3.89   0.000     2.352016    7.146384
-------------+----------------------------------------------------------------
     sigma_u |  .66630394
     sigma_e |  .37883871
         rho |   .7557043   (fraction of variance due to u_i)
------------------------------------------------------------------------------

. *-----------------------------------------------------;
. *add patent applications;
. *-----------------------------------------------------;
. xi: reg logwage $expl_1 pat_apps if vuosi<1997, cluster(id);
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-92       (naturally coded; _Isector_1 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: _Ivuosi_1997 omitted because of collinearity
note: _Ivuosi_1998 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_13 omitted because of collinearity
note: _Isector_62 omitted because of collinearity
note: _Isector_65 omitted because of collinearity
note: _Isector_66 omitted because of collinearity
note: _Isector_71 omitted because of collinearity
note: _Isector_80 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity

Linear regression                                      Number of obs =   10409
                                                       F( 77,  2092) =       .
                                                       Prob > F      =       .
                                                       R-squared     =  0.3859
                                                       Root MSE      =  .40389

                                  (Std. Err. adjusted for 2093 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .0935046   .0073006    12.81   0.000     .0791873    .1078218
        age2 |  -.0009135   .0000892   -10.24   0.000    -.0010884   -.0007385
      tenure |   .0038064    .001382     2.75   0.006     .0010962    .0065166
      female |  -.1948791   .0232111    -8.40   0.000    -.2403984   -.1493599
      months |   .1627267    .008297    19.61   0.000     .1464555    .1789979
         emp |  -.0006425   .0003085    -2.08   0.037    -.0012476   -.0000375
_Ivuosi_1992 |  -.0224969   .0101788    -2.21   0.027    -.0424585   -.0025353
_Ivuosi_1993 |  -.0414431   .0109651    -3.78   0.000    -.0629467   -.0199395
_Ivuosi_1994 |  -.0297743   .0119804    -2.49   0.013    -.0532691   -.0062795
_Ivuosi_1995 |   .0128915   .0129997     0.99   0.321    -.0126022    .0383852
_Ivuosi_1996 |   .0382613   .0127817     2.99   0.003     .0131952    .0633275
_Ivuosi_1997 |          0  (omitted)
_Ivuosi_1998 |          0  (omitted)
_Ivuosi_1999 |          0  (omitted)
 _Isector_10 |   .4922597   .2141674     2.30   0.022     .0722563    .9122632
 _Isector_13 |          0  (omitted)
 _Isector_14 |  -.0029988   .1940916    -0.02   0.988    -.3836316    .3776341
 _Isector_15 |   .2973643   .1564541     1.90   0.057    -.0094576    .6041862
 _Isector_16 |   1.635119   .4284398     3.82   0.000     .7949067    2.475332
 _Isector_17 |   .3297994   .1762093     1.87   0.061    -.0157644    .6753632
 _Isector_18 |    .557323   .3515625     1.59   0.113    -.1321258    1.246772
 _Isector_20 |   .2964325   .1857607     1.60   0.111    -.0678626    .6607275
 _Isector_21 |    .449347   .1583343     2.84   0.005     .1388378    .7598563
 _Isector_22 |  -.1383094   .1197027    -1.16   0.248    -.3730582    .0964394
 _Isector_23 |   .2835903   .1557041     1.82   0.069    -.0217609    .5889414
 _Isector_24 |   .2344593    .154637     1.52   0.130    -.0687991    .5377177
 _Isector_25 |   .3292884   .1790644     1.84   0.066    -.0218746    .6804513
 _Isector_26 |   .3532279   .1755349     2.01   0.044     .0089867    .6974691
 _Isector_27 |   .2741114   .1569232     1.75   0.081    -.0336305    .5818532
 _Isector_28 |   .1974969   .1586109     1.25   0.213    -.1135548    .5085487
 _Isector_29 |   .2697832   .1572675     1.72   0.086    -.0386338    .5782002
 _Isector_30 |   .2117417   .1631662     1.30   0.195    -.1082433    .5317266
 _Isector_31 |    .135526   .1553596     0.87   0.383    -.1691496    .4402015
 _Isector_32 |   .2747576   .1564155     1.76   0.079    -.0319886    .5815039
 _Isector_33 |   .2596312    .154737     1.68   0.094    -.0438233    .5630856
 _Isector_34 |   .1648046   .1866181     0.88   0.377    -.2011719     .530781
 _Isector_35 |   .3380786   .1617343     2.09   0.037     .0209017    .6552555
 _Isector_36 |   .1826007   .1687572     1.08   0.279    -.1483488    .5135502
 _Isector_40 |   .1201733   .1582694     0.76   0.448    -.1902087    .4305552
 _Isector_45 |   .3376165   .1765769     1.91   0.056    -.0086682    .6839011
 _Isector_50 |   .1286458     .16856     0.76   0.445     -.201917    .4592087
 _Isector_51 |   .1760828   .1696483     1.04   0.299    -.1566143    .5087799
 _Isector_52 |   .0659781   .1490108     0.44   0.658    -.2262466    .3582029
 _Isector_55 |   .4403995   .3980053     1.11   0.269    -.3401282    1.220927
 _Isector_60 |   .1914608   .2537817     0.75   0.451    -.3062301    .6891517
 _Isector_62 |          0  (omitted)
 _Isector_63 |   .3251249   .1661863     1.96   0.051    -.0007827    .6510326
 _Isector_64 |   .2918824     .18067     1.62   0.106    -.0624293    .6461941
 _Isector_65 |          0  (omitted)
 _Isector_66 |          0  (omitted)
 _Isector_70 |    .035879   .1317718     0.27   0.785    -.2225385    .2942966
 _Isector_71 |          0  (omitted)
 _Isector_72 |   .3028593    .163223     1.86   0.064     -.017237    .6229557
 _Isector_73 |   .1675107   .1657004     1.01   0.312     -.157444    .4924655
 _Isector_74 |   .2299832    .155509     1.48   0.139    -.0749853    .5349518
 _Isector_80 |          0  (omitted)
 _Isector_85 |    .023231   .2692438     0.09   0.931    -.5047827    .5512447
 _Isector_90 |   .4300614   .3009654     1.43   0.153    -.1601614    1.020284
 _Isector_92 |   .1303962   .1731922     0.75   0.452    -.2092507    .4700432
   _Ieduc_32 |   .0616358   .0923379     0.67   0.505    -.1194478    .2427194
   _Ieduc_33 |  -.2139497   .0834148    -2.56   0.010    -.3775343   -.0503651
   _Ieduc_35 |  -.1827341   .0535152    -3.41   0.001    -.2876826   -.0777856
   _Ieduc_36 |   .1940667   .3028104     0.64   0.522    -.3997744    .7879078
   _Ieduc_37 |   -.199468   .2968127    -0.67   0.502    -.7815471     .382611
   _Ieduc_38 |  -.5895816   .3995948    -1.48   0.140    -1.373226    .1940632
   _Ieduc_53 |   .1765807   .1552754     1.14   0.256    -.1279297    .4810911
   _Ieduc_54 |   .2397306   .0503058     4.77   0.000     .1410759    .3383852
   _Ieduc_55 |  -.0493933   .0488884    -1.01   0.312    -.1452682    .0464816
   _Ieduc_56 |          0  (omitted)
   _Ieduc_57 |   .1034154    .170897     0.61   0.545    -.2317304    .4385613
   _Ieduc_63 |   .2804735   .1374086     2.04   0.041     .0110017    .5499453
   _Ieduc_64 |   .0916612   .1732397     0.53   0.597    -.2480789    .4314012
   _Ieduc_65 |    .190814   .0455309     4.19   0.000     .1015234    .2801046
   _Ieduc_66 |  -.1477704   .0603617    -2.45   0.014    -.2661456   -.0293953
   _Ieduc_72 |   .0668585   .0599126     1.12   0.265    -.0506361    .1843531
   _Ieduc_73 |   .4040718   .1183105     3.42   0.001     .1720533    .6360902
   _Ieduc_74 |   .2374428   .0470139     5.05   0.000      .145244    .3296417
   _Ieduc_75 |    .345528   .0449319     7.69   0.000      .257412    .4336439
   _Ieduc_76 |   .3842189    .087884     4.37   0.000     .2118696    .5565681
   _Ieduc_77 |   .3863857   .0681267     5.67   0.000     .2527825     .519989
   _Ieduc_83 |   .2935159   .0551708     5.32   0.000     .1853204    .4017113
   _Ieduc_84 |   .3684126   .0542966     6.79   0.000     .2619315    .4748936
   _Ieduc_85 |   .4563312    .050343     9.06   0.000     .3576037    .5550587
   _Ieduc_86 |    .471449   .1147764     4.11   0.000     .2463612    .6965368
   _Ieduc_87 |   .4956959   .0951976     5.21   0.000      .309004    .6823877
   _Ieduc_99 |   -.117059   .0604401    -1.94   0.053    -.2355879    .0014699
   _Inuts2_2 |  -.0835812   .0178956    -4.67   0.000    -.1186762   -.0484862
   _Inuts2_3 |   -.103214   .0334845    -3.08   0.002    -.1688803   -.0375477
   _Inuts2_4 |  -.0555781      .0203    -2.74   0.006    -.0953884   -.0157678
   _Inuts2_5 |   -.093949   .0268751    -3.50   0.000    -.1466537   -.0412442
   _Inuts2_6 |   .5034218   .0965837     5.21   0.000     .3140116    .6928319
        pats |   .0233569   .0073297     3.19   0.001     .0089827    .0377311
    pat_apps |    .021459   .0065633     3.27   0.001     .0085877    .0343303
       _cons |   5.891576   .2260453    26.06   0.000     5.448279    6.334873
------------------------------------------------------------------------------

. xi: xtreg logwage $expl_1 pat_apps if vuosi<1997, fe robust;
i.vuosi           _Ivuosi_1991-1999   (naturally coded; _Ivuosi_1991 omitted)
i.sector          _Isector_1-92       (naturally coded; _Isector_1 omitted)
i.educ            _Ieduc_30-99        (naturally coded; _Ieduc_30 omitted)
i.nuts2           _Inuts2_1-6         (_Inuts2_1 for nuts2==1 omitted)
note: female omitted because of collinearity
note: _Ivuosi_1996 omitted because of collinearity
note: _Ivuosi_1997 omitted because of collinearity
note: _Ivuosi_1998 omitted because of collinearity
note: _Ivuosi_1999 omitted because of collinearity
note: _Isector_13 omitted because of collinearity
note: _Isector_16 omitted because of collinearity
note: _Isector_17 omitted because of collinearity
note: _Isector_18 omitted because of collinearity
note: _Isector_22 omitted because of collinearity
note: _Isector_62 omitted because of collinearity
note: _Isector_63 omitted because of collinearity
note: _Isector_65 omitted because of collinearity
note: _Isector_66 omitted because of collinearity
note: _Isector_71 omitted because of collinearity
note: _Isector_80 omitted because of collinearity
note: _Ieduc_32 omitted because of collinearity
note: _Ieduc_33 omitted because of collinearity
note: _Ieduc_36 omitted because of collinearity
note: _Ieduc_37 omitted because of collinearity
note: _Ieduc_38 omitted because of collinearity
note: _Ieduc_53 omitted because of collinearity
note: _Ieduc_54 omitted because of collinearity
note: _Ieduc_56 omitted because of collinearity
note: _Ieduc_57 omitted because of collinearity
note: _Ieduc_63 omitted because of collinearity
note: _Ieduc_66 omitted because of collinearity
note: _Ieduc_72 omitted because of collinearity
note: _Ieduc_73 omitted because of collinearity
note: _Ieduc_83 omitted because of collinearity
note: _Ieduc_86 omitted because of collinearity

Fixed-effects (within) regression               Number of obs      =     10409
Group variable: id                              Number of groups   =      2093

R-sq:  within  = 0.1921                         Obs per group: min =         1
       between = 0.3880                                        avg =       5.0
       overall = 0.2839                                        max =         6

                                                F(55,2092)         =         .
corr(u_i, Xb)  = -0.2318                        Prob > F           =         .

                                  (Std. Err. adjusted for 2093 clusters in id)
------------------------------------------------------------------------------
             |               Robust
     logwage |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
         age |   .0891195   .0131612     6.77   0.000      .063309      .11493
        age2 |  -.0007671   .0001489    -5.15   0.000    -.0010592    -.000475
      tenure |   .0067618   .0029886     2.26   0.024     .0009008    .0126228
      female |          0  (omitted)
      months |   .1455805   .0093849    15.51   0.000     .1271757    .1639852
         emp |  -.0002009   .0004023    -0.50   0.617    -.0009898    .0005879
_Ivuosi_1992 |  -.0333509   .0093021    -3.59   0.000    -.0515933   -.0151085
_Ivuosi_1993 |  -.0661339   .0089869    -7.36   0.000    -.0837581   -.0485098
_Ivuosi_1994 |  -.0486536   .0091953    -5.29   0.000    -.0666864   -.0306208
_Ivuosi_1995 |  -.0109631   .0075556    -1.45   0.147    -.0257803    .0038541
_Ivuosi_1996 |          0  (omitted)
_Ivuosi_1997 |          0  (omitted)
_Ivuosi_1998 |          0  (omitted)
_Ivuosi_1999 |          0  (omitted)
 _Isector_10 |  -.4304545   .1801353    -2.39   0.017    -.7837176   -.0771914
 _Isector_13 |          0  (omitted)
 _Isector_14 |  -.2612248   .2029018    -1.29   0.198    -.6591352    .1366856
 _Isector_15 |  -.2874633   .1586065    -1.81   0.070    -.5985063    .0235798
 _Isector_16 |          0  (omitted)
 _Isector_17 |          0  (omitted)
 _Isector_18 |          0  (omitted)
 _Isector_20 |   -.296471   .2202203    -1.35   0.178    -.7283446    .1354027
 _Isector_21 |  -.3192217   .1918477    -1.66   0.096    -.6954539    .0570104
 _Isector_22 |          0  (omitted)
 _Isector_23 |  -.2522254   .1649154    -1.53   0.126    -.5756408      .07119
 _Isector_24 |  -.2871068   .1593574    -1.80   0.072    -.5996224    .0254088
 _Isector_25 |   -.221504   .1763378    -1.26   0.209    -.5673198    .1243118
 _Isector_26 |  -.1500576   .2000081    -0.75   0.453    -.5422931    .2421779
 _Isector_27 |  -.3542629   .1827318    -1.94   0.053     -.712618    .0040922
 _Isector_28 |  -.2813491   .1644729    -1.71   0.087    -.6038968    .0411985
 _Isector_29 |  -.2853647    .163121    -1.75   0.080    -.6052611    .0345317
 _Isector_30 |  -.2964697   .1636791    -1.81   0.070    -.6174606    .0245211
 _Isector_31 |  -.3616476   .1699917    -2.13   0.033    -.6950181   -.0282771
 _Isector_32 |  -.2650933   .1614197    -1.64   0.101    -.5816532    .0514666
 _Isector_33 |    -.33542   .1652617    -2.03   0.043    -.6595144   -.0113256
 _Isector_34 |  -.4375334   .1974004    -2.22   0.027    -.8246552   -.0504117
 _Isector_35 |   -.232024   .2463364    -0.94   0.346     -.715114    .2510659
 _Isector_36 |  -.2441294   .1681199    -1.45   0.147    -.5738292    .0855703
 _Isector_40 |  -.3432653    .275589    -1.25   0.213    -.8837226     .197192
 _Isector_45 |   -.252656   .1695096    -1.49   0.136     -.585081    .0797689
 _Isector_50 |  -.3253495   .1628169    -2.00   0.046    -.6446494   -.0060495
 _Isector_51 |  -.3161343    .162514    -1.95   0.052    -.6348403    .0025718
 _Isector_52 |  -.2583308   .1775445    -1.46   0.146    -.6065131    .0898516
 _Isector_55 |  -.8822345   .1685111    -5.24   0.000    -1.212701   -.5517675
 _Isector_60 |  -.3422367   .2610181    -1.31   0.190    -.8541189    .1696455
 _Isector_62 |          0  (omitted)
 _Isector_63 |          0  (omitted)
 _Isector_64 |  -.2263455   .0198217   -11.42   0.000    -.2652179   -.1874731
 _Isector_65 |          0  (omitted)
 _Isector_66 |          0  (omitted)
 _Isector_70 |  -.4950472   .2896083    -1.71   0.088    -1.062998    .0729033
 _Isector_71 |          0  (omitted)
 _Isector_72 |  -.2284707   .1913095    -1.19   0.233    -.6036474    .1467061
 _Isector_73 |  -.4208826   .2130842    -1.98   0.048    -.8387618   -.0030035
 _Isector_74 |  -.2753614   .1617923    -1.70   0.089    -.5926521    .0419293
 _Isector_80 |          0  (omitted)
 _Isector_85 |  -.8735642   .1691789    -5.16   0.000    -1.205341   -.5417876
 _Isector_90 |   .1577936   .1648334     0.96   0.339    -.1654611    .4810482
 _Isector_92 |  -.3897715   .1801861    -2.16   0.031    -.7431342   -.0364088
   _Ieduc_32 |          0  (omitted)
   _Ieduc_33 |          0  (omitted)
   _Ieduc_35 |  -.4195002   .2086331    -2.01   0.044    -.8286503   -.0103502
   _Ieduc_36 |          0  (omitted)
   _Ieduc_37 |          0  (omitted)
   _Ieduc_38 |          0  (omitted)
   _Ieduc_53 |          0  (omitted)
   _Ieduc_54 |          0  (omitted)
   _Ieduc_55 |   .1489471   .0980288     1.52   0.129     -.043297    .3411913
   _Ieduc_56 |          0  (omitted)
   _Ieduc_57 |          0  (omitted)
   _Ieduc_63 |          0  (omitted)
   _Ieduc_64 |  -.0496479   .2411432    -0.21   0.837    -.5225535    .4232577
   _Ieduc_65 |   .2892723   .0770839     3.75   0.000     .1381031    .4404415
   _Ieduc_66 |          0  (omitted)
   _Ieduc_72 |          0  (omitted)
   _Ieduc_73 |          0  (omitted)
   _Ieduc_74 |   .2349077   .1067046     2.20   0.028     .0256495    .4441659
   _Ieduc_75 |   .3599387   .0477903     7.53   0.000     .2662172    .4536601
   _Ieduc_76 |  -.1031706   .0136064    -7.58   0.000    -.1298541   -.0764871
   _Ieduc_77 |  -.1974355   .0689053    -2.87   0.004    -.3325657   -.0623054
   _Ieduc_83 |          0  (omitted)
   _Ieduc_84 |   .2809138   .1070776     2.62   0.009     .0709241    .4909035
   _Ieduc_85 |   .4276159   .0795522     5.38   0.000     .2716063    .5836256
   _Ieduc_86 |          0  (omitted)
   _Ieduc_87 |   .0146831   .0919577     0.16   0.873    -.1656551    .1950213
   _Ieduc_99 |   .0736009   .0898029     0.82   0.413    -.1025114    .2497132
   _Inuts2_2 |    -.02231   .0970927    -0.23   0.818    -.2127184    .1680984
   _Inuts2_3 |   -.078148   .0881319    -0.89   0.375    -.2509834    .0946873
   _Inuts2_4 |   .1499942   .1493571     1.00   0.315    -.1429098    .4428981
   _Inuts2_5 |  -.0262342   .0889631    -0.29   0.768    -.2006995    .1482312
   _Inuts2_6 |   .0536384   .0188577     2.84   0.004     .0166566    .0906201
        pats |   .0117244   .0070738     1.66   0.098    -.0021481    .0255969
    pat_apps |   .0046179   .0073644     0.63   0.531    -.0098244    .0190601
       _cons |   6.473176   .3251543    19.91   0.000     5.835516    7.110835
-------------+----------------------------------------------------------------
     sigma_u |  .38121517
     sigma_e |  .30226812
         rho |  .61398613   (fraction of variance due to u_i)
------------------------------------------------------------------------------

. clear;

. log close;
      name:  <unnamed>
       log:  H:\YR\labora\labora\Keh\Keksij�t\totaaliajot\total_110519_final.log
  log type:  text
 closed on:   4 Jan 2013, 09:00:30
--------------------------------------------------------------------------------------------------
